リモート Redhat Enterprise Linux 7 ホストに、RHSA-2021:0876 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。

  - nss: 不適切な参照カウントによる sftk_FreeSession でのメモリ解放後使用 (Use After Free) (CVE-2019-11756)

  - nss: 暗号化プリミティブに対する入力の長さをチェックします (CVE-2019-17006)

  - nss: CERT_DecodeCertPackage() での Netscape 証明書シーケンスの処理は、NULL デリファレンスによりクラッシュし、サービス拒否を引き起こす可能性があります (CVE-2019-17007)

  - nss: CHACHA20-POLY1305 サイズの小さいタグでの暗号化により、領域外読み取りが発生します (CVE-2020-12403)

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。

リモートホストにインストールされている AHV のバージョンは、20201105.1021 より前です。したがって、NXSA-AHV-20201105.1021 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。

  - 3.46より前の Network Security Services (NSS) で、いくつかの暗号化プリミティブの長さチェックが行われませんでした。ライブラリを呼び出すアプリケーションが入力のサニティチェックを実行しない場合、バッファオーバーフローによるクラッシュが発生する可能性があります。(CVE-2019-17006)

  - cURL 7.19.4 〜 7.65.3 の TFTP プロトコルハンドラーのヒープバッファオーバーフロー。(CVE-2019-5482)

  - Oracle MySQL の MySQL Server 製品における脆弱性 (コンポーネント: サーバー: オプティマイザー)。影響を受けるサポート対象のバージョンは 5.6.45 以前、5.7.27 以前、8.0.17 以前です。容易に悪用可能な脆弱性により、権限が低い攻撃者が複数のプロトコルを介してネットワークにアクセスし、MySQL Server を侵害する可能性があります。この脆弱性に対する攻撃が成功すると、権限なく MySQL Server をハングさせたり、頻繁にクラッシュを繰り返させたりする可能性 (完全な DOS) があります。(CVE-2019-2974)

  - Oracle MySQLのMySQL Client製品における脆弱性（コンポーネント：C API）。影響を受けるサポート対象のバージョンは 5.6.46 以前、5.7.28 以前、8.0.18 以前です。悪用が難しい脆弱性ですが、認証されていない攻撃者が複数のプロトコルを使用してネットワークにアクセスし、MySQL Clientを侵害する可能性があります。
    この脆弱性に対する攻撃が成功すると、権限なしで MySQL Client をハングさせたり、頻繁にクラッシュを繰り返させたりする可能性 (完全な DOS) があります。(CVE-2020-2574)

  - Oracle MySQLのMySQL Client製品における脆弱性（コンポーネント：C API）。影響を受けるサポート対象のバージョンは 5.6.47 以前、5.7.27 以前、8.0.17 以前です。悪用が難しい脆弱性ですが、低い権限を持つ攻撃者が複数のプロトコルを開始してネットワークにアクセスし、MySQL Client を侵害する可能性があります。
    この脆弱性に対する攻撃が成功すると、権限なしでMySQL Clientをハングさせたり、頻繁にクラッシュを繰り返させたりする可能性（完全なDOS）があります。（CVE-2020-2752）

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 remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14418-1 advisory.

  - A vulnerability exists where it possible to force Network Security Services (NSS) to sign     CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in     CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This     vulnerability affects Firefox < 68. (CVE-2019-11727)

  - When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the     block size, a small out of bounds write could occur. This could have caused heap corruption and a     potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and     Firefox < 71. (CVE-2019-11745)

  - In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length     checks. In cases where the application calling the library did not perform a sanity check on the inputs it     could result in a crash due to a buffer overflow. (CVE-2019-17006)

  - NSS has shown timing differences when performing DSA signatures, which was exploitable and could     eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox     ESR < 68.9. (CVE-2020-12399)

  - During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean     Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform     electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes.
    *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected,     but products built on top of it might. This vulnerability affects Firefox < 78. (CVE-2020-12402)

Note that Nessus has not tested for this issue 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-2020-3280 advisory.

    nspr     [4.25.0-2]
    - Rebuild

    [4.25.0-1]
    - Update to NSPR 4.25

    nss     [3.53.1-11]
    - Fix issue with upgradedb where upgradedb expects standard to       generate dbm databases, not sql databases (default in RHEL8)

    [3.53.1-10]
    - Disable dh timing test because it's unreliable on s390

    [3.53.1-9]
    - Explicitly enable upgradedb/sharedb test cycles

    [3.53.1-8]
    - Disable Delegated Credentials for TLS

    [3.53.1-7]
    - Fix attribute decryption issue where the private key components       integrity check on private attributes where not being checked.

    [3.53.1-6]
    - Update nss-rsa-pkcs1-sigalgs.patch to the upstream version

    [3.53.1-5]
    - Include required checks for dh and ecdh key generation in FIPS mode.

    [3.53.1-4]
    - Add better checks for dh derive operations in FIPS mode.

    [3.53.1-3]
    - Disable NSS_HASH_ALG_SUPPORT as well for MD5 (#1849938)
    - Adjust for update-crypto-policies packaging change (#1848649)
    - Fix compilation with -Werror=strict-prototypes (#1843417)

    [3.53.1-2]
    - Fix regression in MD5 disablement (#1849938)
    - Include rsa_pkcs1_* in signature_algorithms extension (#1847945)

    [3.53.1-1]
    - Update to NSS 3.53.1

    [3.53.0-1]
    - Update to NSS 3.53

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

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4076 advisory.

    Network Security Services (NSS) is a set of libraries designed to support the cross-platform development     of security-enabled client and server applications.

    Netscape Portable Runtime (NSPR) provides platform independence for non-GUI operating system facilities.

    The following packages have been upgraded to a later upstream version: nss (3.53.1), nss-softokn (3.53.1),     nss-util (3.53.1), nspr (4.25.0). (BZ#1804262, BZ#1804264, BZ#1804271, BZ#1804273)

    Security Fix(es):

    * nss: Out-of-bounds read when importing curve25519 private key (CVE-2019-11719)

    * nss: Use-after-free in sftk_FreeSession due to improper refcounting (CVE-2019-11756)

    * nss: Check length of inputs for cryptographic primitives (CVE-2019-17006)

    * nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)

    * nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function     (CVE-2020-12400)

    * nss: ECDSA timing attack mitigation bypass (CVE-2020-12401)

    * nss: Side channel vulnerabilities during RSA key generation (CVE-2020-12402)

    * nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)

    * nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (CVE-2019-11727)

    * nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state (CVE-2019-17023)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Memory leak: libcurl leaks 120 bytes on each connection (BZ#1688958)

    * NSS does not set downgrade sentinel in ServerHello.random for TLS 1.0 and TLS 1.1 (BZ#1712924)

    * Make TLS 1.3 work in FIPS mode (BZ#1724251)

    * Name Constraints validation: CN treated as DNS name even when syntactically invalid as DNS name     (BZ#1737910)

    * x25519 allowed in FIPS mode (BZ#1754518)

    * When NSS_SDB_USE_CACHE not set, after curl access https, dentry increase but never released - consider     alternative algorithm for benchmarking ACCESS call in sdb_measureAccess (BZ#1779325)

    * Running ipa-backup continuously causes httpd to crash and makes it irrecoverable (BZ#1804015)

    * nss needs to comply to the new SP800-56A rev 3 requirements (BZ#1857308)

    * KDF-self-tests-induced changes for nss in RHEL 7.9 (BZ#1870885)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

According to the versions of the nss-softokn packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in the way CHACHA20-POLY1305 was     implemented in NSS. When using multi-part Chacha20, it     could cause out-of-bounds reads. This issue was fixed     by explicitly disabling multi-part ChaCha20 (which was     not functioning correctly) and strictly enforcing tag     length. The highest threat from this vulnerability is     to confidentiality and system     availability.(CVE-2020-12403)

  - When converting coordinates from projective to affine,     the modular inversion was not performed in constant     time, resulting in a possible timing-based side channel     attack. This vulnerability affects Firefox < 80 and     Firefox for Android < 80.CVE-2020-12400)

  - NSS has shown timing differences when performing DSA     signatures, which was exploitable and could eventually     leak private keys. This vulnerability affects     Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR <     68.9.(CVE-2020-12399)

  - During RSA key generation, bignum implementations used     a variation of the Binary Extended Euclidean Algorithm     which entailed significantly input-dependent flow. This     allowed an attacker able to perform     electromagnetic-based side channel attacks to record     traces leading to the recovery of the secret primes.
    *Note:* An unmodified Firefox browser does not generate     RSA keys in normal operation and is not affected, but     products built on top of it might. This vulnerability     affects Firefox < 78.(CVE-2020-12402)

  - During ECDSA signature generation, padding applied in     the nonce designed to ensure constant-time scalar     multiplication was removed, resulting in variable-time     execution dependent on secret data. This vulnerability     affects Firefox < 80 and Firefox for Android <     80.(CVE-2020-12401)

  - In Network Security Services (NSS) before 3.46, several     cryptographic primitives had missing length checks. In     cases where the application calling the library did not     perform a sanity check on the inputs it could result in     a crash due to a buffer overflow.(CVE-2019-17006)

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 NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has nss packages installed that are affected by multiple vulnerabilities:

  - A vulnerability exists where it possible to force Network Security Services (NSS) to sign     CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in     CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This     vulnerability affects Firefox < 68. (CVE-2019-11727)

  - When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger     an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information     disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
    (CVE-2019-11719)

  - Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited     to a denial of service). This vulnerability affects Firefox < 71. (CVE-2019-11756)

  - In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length     checks. In cases where the application calling the library did not perform a sanity check on the inputs it     could result in a crash due to a buffer overflow. (CVE-2019-17006)

  - After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting     in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming     Application Data records will be ignored. This vulnerability affects Firefox < 72. (CVE-2019-17023)

  - During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean     Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform     electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes.
    *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected,     but products built on top of it might. This vulnerability affects Firefox < 78. (CVE-2020-12402)

  - When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which     leaked partial information about the nonce used during signature generation. Given an electro-magnetic     trace of a few signature generations, the private key could have been computed. This vulnerability affects     Firefox < 80 and Firefox for Android < 80. (CVE-2020-6829)

  - During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar     multiplication was removed, resulting in variable-time execution dependent on secret data. This     vulnerability affects Firefox < 80 and Firefox for Android < 80. (CVE-2020-12401)

  - When converting coordinates from projective to affine, the modular inversion was not performed in constant     time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80     and Firefox for Android < 80. (CVE-2020-12400)

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 mozilla-nspr, mozilla-nss fixes the following issues :

mozilla-nss was updated to NSS 3.47.1 :

Security issues fixed :

CVE-2019-17006: Added length checks for cryptographic primitives (bsc#1159819).

CVE-2019-11745: EncryptUpdate should use maxout, not block size (bsc#1158527).

CVE-2019-11727: Fixed vulnerability sign CertificateVerify with PKCS#1 v1.5 signatures issue (bsc#1141322).

mozilla-nspr was updated to version 4.23: Whitespace in C files was cleaned up and no longer uses tab characters for indenting.

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.

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

  - In Network Security Services (NSS) before 3.46, several     cryptographic primitives had missing length checks. In     cases where the application calling the library did not     perform a sanity check on the inputs it could result in     a crash due to a buffer overflow.(CVE-2019-17006)

  - During ECDSA signature generation, padding applied in     the nonce designed to ensure constant-time scalar     multiplication was removed, resulting in variable-time     execution dependent on secret data.(CVE-2020-12401)

  - During RSA key generation, bignum implementations used     a variation of the Binary Extended Euclidean Algorithm     which entailed significantly input-dependent flow. This     allowed an attacker able to perform     electromagnetic-based side channel attacks to record     traces leading to the recovery of the secret primes.
    *Note:* An unmodified Firefox browser does not generate     RSA keys in normal operation and is not affected, but     products built on top of it might.(CVE-2020-12402)

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.

According to the version of the nss packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - In Network Security Services (NSS) before 3.46, several     cryptographic primitives had missing length checks. In     cases where the application calling the library did not     perform a sanity check on the inputs it could result in     a crash due to a buffer overflow.(CVE-2019-17006)

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.

This update for mozilla-nspr, mozilla-nss fixes the following issues :

mozilla-nss was updated to version 3.53

  - CVE-2020-12399: Fixed a timing attack on DSA signature     generation (bsc#1171978).

  - CVE-2019-17006: Added length checks for cryptographic     primitives (bsc#1159819). Release notes:
    https://developer.mozilla.org/en-US/docs/Mozilla/Project     s/NSS/NSS_3.53_release_notes

mozilla-nspr to version 4.25

This update was imported from the SUSE:SLE-15:Update update project.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has nss packages installed that are affected by multiple vulnerabilities:

  - When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger     an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information     disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
    (CVE-2019-11719)

  - A vulnerability exists where it possible to force Network Security Services (NSS) to sign     CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in     CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This     vulnerability affects Firefox < 68. (CVE-2019-11727)

  - Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited     to a denial of service). This vulnerability affects Firefox < 71. (CVE-2019-11756)

  - In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length     checks. In cases where the application calling the library did not perform a sanity check on the inputs it     could result in a crash due to a buffer overflow. (CVE-2019-17006)

  - After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting     in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming     Application Data records will be ignored. This vulnerability affects Firefox < 72. (CVE-2019-17023)

  - When converting coordinates from projective to affine, the modular inversion was not performed in constant     time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80     and Firefox for Android < 80. (CVE-2020-12400)

  - During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar     multiplication was removed, resulting in variable-time execution dependent on secret data. This     vulnerability affects Firefox < 80 and Firefox for Android < 80. (CVE-2020-12401)

  - During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean     Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform     electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes.
    *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected,     but products built on top of it might. This vulnerability affects Firefox < 78. (CVE-2020-12402)

  - A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using     multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling     multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest     threat from this vulnerability is to confidentiality and system availability. (CVE-2020-12403)

  - When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which     leaked partial information about the nonce used during signature generation. Given an electro-magnetic     trace of a few signature generations, the private key could have been computed. This vulnerability affects     Firefox < 80 and Firefox for Android < 80. (CVE-2020-6829)

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

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:3280 advisory.

  - nss: Use-after-free in sftk_FreeSession due to improper refcounting (CVE-2019-11756)

  - nss: Check length of inputs for cryptographic primitives (CVE-2019-17006)

  - nss: TLS 1.3 HelloRetryRequest downgrade request sets client into invalid state (CVE-2019-17023)

  - nss: Side channel vulnerabilities during RSA key generation (CVE-2020-12402)

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

It was found that certain cryptographic primitives in nss, the Network Security Service libraries, did not check the length of the input text. This could result in a potential heap-based buffer overflow.

For Debian 8 'Jessie', this problem has been fixed in version 2:3.26-1+debu8u10.

We recommend that you upgrade your nss packages.

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

In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling the library did not perform a sanity check on the inputs it could result in a crash due to a buffer overflow.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

ID	名稱	產品	系列	已發布	已更新	嚴重性
147829	RHEL 7 : nss and nss-softokn (RHSA-2021:0876)	Nessus	Red Hat Local Security Checks	2021/3/17	2024/11/7	critical
164552	Nutanix AHV: 複数の脆弱性 (NXSA-AHV-20201105.1021)	Nessus	Misc.	2022/9/1	2025/2/19	critical
150659	SUSE SLES11 Security Update : mozilla-nspr, mozilla-nss (SUSE-SU-2020:14418-1)	Nessus	SuSE Local Security Checks	2021/6/10	2023/12/26	critical
139397	Oracle Linux 8 : nss / and / nspr (ELSA-2020-3280)	Nessus	Oracle Linux Local Security Checks	2020/8/7	2024/11/1	critical
141059	RHEL 7 : nss and nspr (RHSA-2020:4076)	Nessus	Red Hat Local Security Checks	2020/9/30	2024/11/7	critical
147038	EulerOS Virtualization for ARM 64 3.0.6.0 : nss-softokn (EulerOS-SA-2021-1536)	Nessus	Huawei Local Security Checks	2021/3/4	2024/1/16	critical
147361	NewStart CGSL CORE 5.04 / MAIN 5.04 : nss Multiple Vulnerabilities (NS-SA-2021-0019)	Nessus	NewStart CGSL Local Security Checks	2021/3/10	2024/1/11	critical
132924	SUSE SLED12 / SLES12 Security Update : mozilla-nspr, mozilla-nss (SUSE-SU-2020:0088-1)	Nessus	SuSE Local Security Checks	2020/1/15	2024/3/29	critical
145774	EulerOS 2.0 SP8 : nss-softokn (EulerOS-SA-2021-1155)	Nessus	Huawei Local Security Checks	2021/2/1	2024/1/25	critical
144682	EulerOS 2.0 SP9 : nss (EulerOS-SA-2021-1011)	Nessus	Huawei Local Security Checks	2021/1/4	2024/1/31	critical
138700	openSUSE Security Update : mozilla-nspr / mozilla-nss (openSUSE-2020-854)	Nessus	SuSE Local Security Checks	2020/7/20	2024/2/29	critical
154457	NewStart CGSL CORE 5.05 / MAIN 5.05 : nss Multiple Vulnerabilities (NS-SA-2021-0156)	Nessus	NewStart CGSL Local Security Checks	2021/10/27	2023/11/27	critical
145878	CentOS 8 : nss and nspr (CESA-2020:3280)	Nessus	CentOS Local Security Checks	2021/2/1	2024/1/24	critical
132682	Debian DLA-2058-1 : nss security update	Nessus	Debian Local Security Checks	2020/1/7	2024/4/1	critical
501631	Siemens RUGGEDCOM ROX II Insufficient Verification of Data Authenticity (CVE-2019-17006)	Tenable OT Security	Tenable.ot	2023/9/14	2024/9/4	critical

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