The version of squid installed on the remote host is prior to 3.5.20-17.44. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1687 advisory.

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it     allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger     memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This     attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request     processing. (CVE-2021-31806)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a     remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue     trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
    (CVE-2021-31807)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP     Range request to trigger this. (CVE-2021-31808)

  - Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting     availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to     exist in HTTP traffic without any malicious intent by the server. (CVE-2021-33620)

  - An issue was discovered in Squid 4.9 through 4.17 and 5.0.6 through 5.6. Due to inconsistent handling of     internal URIs, there can be Exposure of Sensitive Information about clients using the proxy via an HTTPS     request to an internal cache manager URL. This is fixed in 5.7. (CVE-2022-41317)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:1961-1 advisory.

  - An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it     allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the     security controls. This occurs for certain uri_whitespace configuration settings. (CVE-2020-25097)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it     allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger     memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This     attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)

  - An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain     response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in     benign network traffic. (CVE-2021-28662)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request     processing. (CVE-2021-31806)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the squid package has been released.

According to the versions of the squid package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in Squid before 4.15 and 5.x     before 5.0.6. Due to incorrect parser validation, it     allows a Denial of Service attack against the Cache     Manager API. This allows a trusted client to trigger     memory leaks that. over time, lead to a Denial of     Service via an unspecified short query string. This     attack is limited to clients with Cache Manager API     access privilege.(CVE-2021-28652)

  - An issue was discovered in Squid before 4.15 and 5.x     before 5.0.6. Due to a buffer-management bug, it allows     a denial of service. When resolving a request with the     urn: scheme, the parser leaks a small amount of memory.
    However, there is an unspecified attack methodology     that can easily trigger a large amount of memory     consumption.(CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x     before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all     clients using the proxy) via HTTP Range request     processing.(CVE-2021-31806)

  - Squid before 4.15 and 5.x before 5.0.6 allows remote     servers to cause a denial of service (affecting     availability to all clients) via an HTTP response. The     issue trigger is a header that can be expected to exist     in HTTP traffic without any malicious intent by the     server.(CVE-2021-33620)

  - An issue was discovered in Squid 4.x before 4.15 and     5.x before 5.0.6. If a remote server sends a certain     response header over HTTP or HTTPS, there is a denial     of service. This header can plausibly occur in benign     network traffic.(CVE-2021-28662)

  - An issue was discovered in Squid before 4.15 and 5.x     before 5.0.6. Due to an input-validation bug, it is     vulnerable to a Denial of Service attack (against all     clients using the proxy). A client sends an HTTP Range     request to trigger this.(CVE-2021-31808)

  - An issue was discovered in Squid before 4.15 and 5.x     before 5.0.6. An integer overflow problem allows a     remote server to achieve Denial of Service when     delivering responses to HTTP Range requests. The issue     trigger is a header that can be expected to exist in     HTTP traffic without any malicious     intent.(CVE-2021-31807)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SUSE15 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1961-1 advisory.

  - An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it     allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the     security controls. This occurs for certain uri_whitespace configuration settings. (CVE-2020-25097)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it     allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger     memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This     attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)

  - An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain     response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in     benign network traffic. (CVE-2021-28662)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request     processing. (CVE-2021-31806)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the squid packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request     processing. (CVE-2021-31806)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a     remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue     trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
    (CVE-2021-31807)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP     Range request to trigger this. (CVE-2021-31808)

  - Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting     availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to     exist in HTTP traffic without any malicious intent by the server. (CVE-2021-33620)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

リモートの SUSE Linux SLES12 / SLES_SAP12 ホストには、SUSE-SU-2022:2392-1 のアドバイザリに記載された複数の脆弱性の影響を受けるパッケージがインストールされています。

  - Squid 4.13 ～ 5.x および 5.0.4 ～ で問題が発見されました。不適切な入力検証が原因で、信頼できるクライアントがHTTPリクエストスマグリングを実行でき、スマグリングが行われなければセキュリティコントロールによって禁止されているサービスにアクセスできます。これは、構成設定の特定のuri_whitespaceで発生します。(CVE-2020-25097)

  - 4.15の前のSquidと5.0.6の前の5.xで問題が発見されました。バッファ管理のバグにより、サービス拒否が発生する可能性があります。urn:スキームを使ってリクエストを解決すると、パーサーが少量のメモリを漏洩します。ただし、大量のメモリ消費を容易に発生させられる詳細不明な攻撃方法が存在します。(CVE-2021-28651)

  - Squid 3.x から 3.5.28 まで、4.x から 4.17 まで、5.6 より前の 5.x において、バッファ管理が不適切なために、長い Gopher サーバー応答を処理する際に、サービス拒否が発生する可能性があります。(CVE-2021-46784)

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションの自己報告されたバージョン番号にのみ依存しています。

リモートホストにインストールされているsquidのバージョンは3.5.20-17以前です。したがって、ALAS2-2023-1950 のアドバイザリに記載されている複数の脆弱性の影響を受けます。

  - 4.15 の前の Squid と 5.0.6 の前の 5.x で問題が発見されました。バッファ管理のバグにより、サービス拒否が発生する可能性があります。urn:スキームを使ってリクエストを解決すると、パーサーが少量のメモリを漏洩します。ただし、大量のメモリ消費を容易に発生させられる詳細不明な攻撃方法が存在します。(CVE-2021-28651)

  - 4.15 の前の Squid と 5.0.6 の前の 5.x で問題が発見されました。パーサーの検証が不適切なため、Cache Manager APIに対してDoS攻撃(サービス拒否攻撃)を引き起こすことが可能です。このため、信頼できるクライアントによるメモリリークが発生する可能性があります。時間の経過とともに、詳細不明な短いクエリ文字列を介したサービス拒否が引き起こされる可能性があります。この攻撃は、キャッシュマネージャーAPIアクセス権限を持つクライアントに限定されています。(CVE-2021-28652)

  - 4.15 の前の Squid と 5.0.6 の前の 5.x で問題が発見されました。メモリ管理のバグのため、HTTP範囲リクエスト処理を介した (プロキシを使用するすべてのクライアントに対する) サービス拒否攻撃に脆弱です。 (CVE-2021-31806)

  - 4.15 の前の Squid と 5.0.6 の前の 5.x で問題が発見されました。整数オーバーフローの問題のため、応答をHTTP範囲リクエストに配信するときに、リモートサーバーがサービス拒否を引き起こす可能性があります。この問題を発生させるのは、悪意のない HTTP トラフィックに存在すると思われるヘッダーです。
    (CVE-2021-31807)

  - 4.15 の前の Squid と 5.0.6 の前の 5.x で問題が発見されました。入力検証のバグのため、 (プロキシを使用するすべてのクライアントに対する) サービス拒否攻撃に脆弱です。この攻撃はクライアントがHTTP範囲リクエストを送信して発生させます。 (CVE-2021-31808)

  -4.15以前のSquidおよび5.0.6以前の5.xでは、リモートサーバーが、HTTP応答を介して (すべてのクライアントの可用性に影響を与える) サービス拒否を引き起こす可能性があります。この問題を発生させるのは、サーバーによる悪意のない HTTP トラフィックに存在すると思われるヘッダーです。(CVE-2021-33620)

  - Squid 4.9 ～ 4.17 および 5.0.6 ～ 5.6 で問題が発見されました。内部 URI の処理に一貫性がないため、内部キャッシュマネージャー URL への HTTPS リクエストを介してプロキシを使用するクライアントに関する機密情報の漏洩が発生する可能性があります。これは、5.7で修正されます。(CVE-2022-41317)

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションの自己報告されたバージョン番号にのみ依存しています。

このsquidの更新では、次の問題を修正します：

4.15 への更新：

CVE-2021-28652: キャッシュマネージャーの URL 解析の破損 (bsc#1185918)

CVE-2021-28651: RFC 2169応答解析におけるメモリリーク (bsc#1185921)

CVE-2021-28662: HeaderLookupTable_t: : lookup() を BadHdr および特定の ID に制限します (bsc#1185919)

CVE-2021-31806: より多くの Range リクエストを処理します (bsc#1185916)

CVE-2020-25097: HTTP リクエストスマグリングの脆弱性 (bsc#1183436)

より多くの部分的応答を処理します (bsc#1185923)

間違ったパスが使用されていたため、権限マクロを復元する以前の変更を修正します (bsc#1171569)。

Factory の最近の変更に準拠するために、libdir の代わりに libexecdir を使用します (bsc#1171164)。

権限パッケージは cap_net_raw 機能のセットアップも行うため、pinger バイナリの権限マクロを復元します。現在、新規 squid インストールは機能ビットをまったく取得しません (bsc#1171569)。

pinger と basic_pam_auth ヘルパーが標準の権限を使用するように変更します。
pinger は代わりに cap_net_raw=ep を使用します (bsc#1171569)

注意：Tenable Network Securityは、前述の記述ブロックをSUSEセキュリティアドバイザリから直接抽出しています。Tenableでは、そこに新しい問題を追加することはせずに、できる限り自動的に整理と書式設定をするようにしています。

リモートのOracle Linux 8ホストに、ELSA-2021-4292アドバイザリに記載されている複数の脆弱性の影響を受けるパッケージがインストールされています。

  - 4.15の前のSquidと5.0.6の前の5.xで問題が発見されました。バッファ管理のバグにより、サービス拒否が発生する可能性があります。urn:スキームを使ってリクエストを解決すると、パーサーが少量のメモリを漏洩します。ただし、大量のメモリ消費を容易に発生させられる詳細不明な攻撃方法が存在します。（CVE-2021-28651）

  - 4.15の前のSquidと5.0.6の前の5.xで問題が発見されました。メモリ管理のバグのため、HTTP範囲リクエスト処理を介した（プロキシを使用するすべてのクライアントに対する）サービス拒否攻撃に脆弱です。（CVE-2021-31806）

  - 4.15の前のSquidと5.0.6の前の5.xで問題が発見されました。整数オーバーフローの問題のため、応答をHTTP範囲リクエストに配信するときに、リモートサーバーがサービス拒否を引き起こす可能性があります。この問題を発生させるのは、悪意のないHTTPトラフィックに存在すると思われるヘッダーです。
    (CVE-2021-31807)

  -4.15の前のSquid 4.xと5.0.6の前の5.xで問題が見つかりました。リモートサーバーがHTTPまたはHTTPSで特定の応答ヘッダーを送信する場合、サービス拒否が発生する可能性があります。このヘッダーは、良性のネットワークトラフィックで発生する可能性があります。（CVE-2021-28662）

  - 4.15の前のSquidと5.0.6の前の5.xで問題が発見されました。入力検証のバグのため、（プロキシを使用するすべてのクライアントに対する）サービス拒否攻撃に脆弱です。この攻撃はクライアントがHTTP範囲リクエストを送信して発生させます。（CVE-2021-31808）

  - 4.15の前のSquidと5.0.6の前の5.xで問題が発見されました。パーサーの検証が不適切なため、Cache Manager APIに対してDoS攻撃（サービス拒否攻撃）を引き起こすことが可能です。このため、信頼できるクライアントによるメモリリークが発生する可能性があります。時間の経過とともに、詳細不明な短いクエリ文字列を介したサービス拒否が引き起こされる可能性があります。この攻撃は、キャッシュマネージャーAPIアクセス権限を持つクライアントに限定されています。（CVE-2021-28652）

  -4.15以前のSquidおよび5.0.6以前の5.xでは、リモートサーバーが、HTTP応答を介して（すべてのクライアントの可用性に影響を与える）サービス拒否を引き起こす可能性があります。この問題を発生させるのは、サーバーによる悪意のないHTTPトラフィックに存在すると思われるヘッダーです。（CVE-2021-33620）

Nessus はこの問題をテストしておらず、代わりにアプリケーションの自己報告されたバージョン番号にのみ依存しています。

リモートの Ubuntu 16.04 LTS / 18.04 LTS ホストには、USN-6857-1のアドバイザリに記載されている複数の脆弱性の影響を受けるパッケージがインストールされています。

    Joshua Rogers 氏は、Squid が urn: スキームのあるリクエストを不適切に処理していることを発見しました。リモートの攻撃者がこの問題を悪用して Squid にリソースを消費させ、サービス拒否を引き起こす可能性があります。この問題の影響を受けるのは、Ubuntu 16.04 LTS のみです。(CVE-2021-28651)

    Squid が SSPI と SMB 認証を不適切に処理することがわかりました。リモートの攻撃者が、この問題を利用して、Squid をクラッシュさせてサービス拒否を引き起こしたり、機密情報を取得したりする可能性があります。この問題の影響を受けるのは、Ubuntu 16.04 LTS のみです。(CVE-2022-41318)

    Joshua Rogers 氏は、Squid が HTTP メッセージ処理を不適切に処理することを発見しました。リモートの攻撃者がこの問題を悪用して Squid をクラッシュさせ、サービス拒否を引き起こす可能性があります。(CVE-2023-49285)

    Joshua Rogers 氏は、Squid がヘルパープロセス管理処理を不適切に処理することを発見しました。リモートの攻撃者がこの問題を悪用して Squid をクラッシュさせ、サービス拒否を引き起こす可能性があります。(CVE-2023-49286)

    Joshua Rogers 氏は、Squid が HTTP リクエストの解析を不適切に処理することを発見しました。リモートの攻撃者がこの問題を悪用して Squid をクラッシュさせ、サービス拒否を引き起こす可能性があります。

    (CVE-2023-50269、CVE-2024-25617)

Tenable は、前述の説明ブロックを Ubuntu セキュリティアドバイザリからすでに直接抽出しています。

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションが自己報告するバージョン番号にのみ依存していることに注意してください。

The version of squid installed on the remote host is prior to 3.5.20-17. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-1950 advisory.

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it     allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger     memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This     attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request     processing. (CVE-2021-31806)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a     remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue     trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
    (CVE-2021-31807)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP     Range request to trigger this. (CVE-2021-31808)

  - Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting     availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to     exist in HTTP traffic without any malicious intent by the server. (CVE-2021-33620)

  - An issue was discovered in Squid 4.9 through 4.17 and 5.0.6 through 5.6. Due to inconsistent handling of     internal URIs, there can be Exposure of Sensitive Information about clients using the proxy via an HTTPS     request to an internal cache manager URL. This is fixed in 5.7. (CVE-2022-41317)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2392-1 advisory.

  - An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it     allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the     security controls. This occurs for certain uri_whitespace configuration settings. (CVE-2020-25097)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a     Denial of Service can occur when processing long Gopher server responses. (CVE-2021-46784)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-4292 advisory.

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it     allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount     of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of     memory consumption. (CVE-2021-28651)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request     processing. (CVE-2021-31806)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a     remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue     trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
    (CVE-2021-31807)

  - An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain     response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in     benign network traffic. (CVE-2021-28662)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is     vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP     Range request to trigger this. (CVE-2021-31808)

  - An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it     allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger     memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This     attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)

  - Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting     availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to     exist in HTTP traffic without any malicious intent by the server. (CVE-2021-33620)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

This update for squid fixes the following issues :

update to 4.15 :

CVE-2021-28652: Broken cache manager URL parsing (bsc#1185918)

CVE-2021-28651: Memory leak in RFC 2169 response parsing (bsc#1185921)

CVE-2021-28662: Limit HeaderLookupTable_t::lookup() to BadHdr and specific IDs (bsc#1185919)

CVE-2021-31806: Handle more Range requests (bsc#1185916)

CVE-2020-25097: HTTP Request Smuggling vulnerability (bsc#1183436)

Handle more partial responses (bsc#1185923)

fix previous change to reinstante permissions macros, because the wrong path has been used (bsc#1171569).

use libexecdir instead of libdir to conform to recent changes in Factory (bsc#1171164).

Reinstate permissions macros for pinger binary, because the permissions package is also responsible for setting up the cap_net_raw capability, currently a fresh squid install doesn't get a capability bit at all (bsc#1171569).

Change pinger and basic_pam_auth helper to use standard permissions.
pinger uses cap_net_raw=ep instead (bsc#1171569)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6857-1 advisory.

    Joshua Rogers discovered that Squid incorrectly handled requests with the urn: scheme. A remote attacker     could possibly use this issue to cause Squid to consume resources, leading to a denial of service. This     issue only affected Ubuntu 16.04 LTS. (CVE-2021-28651)

    It was discovered that Squid incorrectly handled SSPI and SMB authentication. A remote attacker could use     this issue to cause Squid to crash, resulting in a denial of service, or possibly obtain sensitive     information. This issue only affected Ubuntu 16.04 LTS. (CVE-2022-41318)

    Joshua Rogers discovered that Squid incorrectly handled HTTP message processing. A remote attacker could     possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-49285)

    Joshua Rogers discovered that Squid incorrectly handled Helper process management. A remote attacker could     possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2023-49286)

    Joshua Rogers discovered that Squid incorrectly handled HTTP request parsing. A remote attacker could     possibly use this issue to cause Squid to crash, resulting in a denial of service.

    (CVE-2023-50269, CVE-2024-25617)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名稱	產品	系列	已發布	已更新	嚴重性
171863	Amazon Linux AMI : squid (ALAS-2023-1687)	Nessus	Amazon Linux Local Security Checks	2023/2/23	2023/9/1	medium
150734	SUSE SLES15 Security Update : squid (SUSE-SU-2021:1961-1)	Nessus	SuSE Local Security Checks	2021/6/12	2024/7/12	high
151955	Photon OS 3.0: Squid PHSA-2021-3.0-0269	Nessus	PhotonOS Local Security Checks	2021/7/22	2024/7/24	medium
152405	EulerOS 2.0 SP8 : squid (EulerOS-SA-2021-2317)	Nessus	Huawei Local Security Checks	2021/8/10	2023/12/4	high
151713	openSUSE 15 Security Update : squid (openSUSE-SU-2021:1961-1)	Nessus	SuSE Local Security Checks	2021/7/16	2024/7/12	high
154370	EulerOS 2.0 SP3 : squid (EulerOS-SA-2021-2618)	Nessus	Huawei Local Security Checks	2021/10/25	2023/11/28	high
163093	SUSE SLES12 セキュリティ更新プログラム: squid (SUSE-SU-2022:2392-1)	Nessus	SuSE Local Security Checks	2022/7/14	2024/7/12	high
171805	Amazon Linux 2: squid (ALAS-2023-1950)	Nessus	Amazon Linux Local Security Checks	2023/2/22	2023/9/1	medium
150212	SUSE SLES12セキュリティ更新プログラム：squid（SUSE-SU-2021:1838-1）	Nessus	SuSE Local Security Checks	2021/6/3	2023/12/27	high
155429	Oracle Linux 8：Squid：4 (ELSA-2021-4292)	Nessus	Oracle Linux Local Security Checks	2021/11/17	2023/11/23	high
201112	Ubuntu 16.04 LTS / 18.04 LTS : Squid の脆弱性 (USN-6857-1)	Nessus	Ubuntu Local Security Checks	2024/6/27	2024/6/27	high
171805	Amazon Linux 2 : squid (ALAS-2023-1950)	Nessus	Amazon Linux Local Security Checks	2023/2/22	2023/9/1	medium
163093	SUSE SLES12 Security Update : squid (SUSE-SU-2022:2392-1)	Nessus	SuSE Local Security Checks	2022/7/14	2024/7/12	high
155429	Oracle Linux 8 : squid:4 (ELSA-2021-4292)	Nessus	Oracle Linux Local Security Checks	2021/11/17	2023/11/23	high
150212	SUSE SLES12 Security Update : squid (SUSE-SU-2021:1838-1)	Nessus	SuSE Local Security Checks	2021/6/3	2023/12/27	high
201112	Ubuntu 16.04 LTS / 18.04 LTS : Squid vulnerabilities (USN-6857-1)	Nessus	Ubuntu Local Security Checks	2024/6/27	2024/6/27	high

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