The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - ppp: Remote client crash in ppp EAP-TLS patch (CVE-2018-11574)

  - Integer overflow in the getword function in options.c in pppd in Paul's PPP Package (ppp) before 2.4.7     allows attackers to access privileged options via a long word in an options file, which triggers a heap-     based buffer overflow that [corrupts] security-relevant variables. (CVE-2014-3158)

  - Buffer overflow in the rc_mksid function in plugins/radius/util.c in Paul's PPP Package (ppp) 2.4.6 and     earlier, when the PID for pppd is greater than 65535, allows remote attackers to cause a denial of service     (crash) via a start accounting message to the RADIUS server. (CVE-2015-3310)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

これは、CVE-2018-11574の修正です。

注意：Tenable Network Securityは、前述の記述ブロックをFedora更新システムのWebサイトから直接抽出しています。
Tenableでは、新たな問題を持ち込まずに、できる限り自動的に整理して書式設定するようにしています。

Ivan Gotovchits 发现 ppp 未能正确处理 EAP-TLS 协议。远程攻击者可能利用此问题造成 ppp 崩溃，从而导致拒绝服务或可能绕过认证。

请注意，Tenable Network Security 已直接从 Ubuntu 安全公告中提取上述描述块。Tenable 已尝试在不引入其他问题的情况下，尽可能进行自动清理和排版。

Ivan Gotovchits 發現 ppp 未正確處理 EAP-TLS 通訊協定。遠端攻擊者可利用此問題造成 ppp 損毀，進而導致拒絕服務，或者可能繞過驗證。

請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

Ivan Gotovchits discovered that ppp incorrectly handled the EAP-TLS protocol. A remote attacker could use this issue to cause ppp to crash, resulting in a denial of service, or possibly bypass authentication.

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

This is an fix for CVE-2018-11574.

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

Ivan Gotovchits氏は、pppがEAP-TLSプロトコル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悪用してpppをクラッシュさせ、サービス拒否を引き起こしたり、認証をバイパスしたりする可能性があります。

注意: Tenable Network Security 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。Tenable では、新たな問題を持ち込まずに、できる限り自動的に整理して書式設定するようにしています。

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

  - Improper input validation together with an integer     overflow in the EAP-TLS protocol implementation in PPPD     may cause a crash, information disclosure, or     authentication bypass. This implementation is     distributed as a patch for PPPD 0.91, and includes the     affected eap.c and eap-tls.c files. Configurations that     use the `refuse-app` option are     unaffected.(CVE-2018-11574)

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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
198776	RHEL 7 : ppp (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	2024/6/3	2024/6/3	critical
120707	Fedora 28：ppp（2018-aed26fc705）	Nessus	Fedora Local Security Checks	2019/1/3	2024/7/1	critical
118796	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS：ppp 漏洞 (USN-3810-1)	Nessus	Ubuntu Local Security Checks	2018/11/7	2023/10/20	critical
118796	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS：ppp 弱點 (USN-3810-1)	Nessus	Ubuntu Local Security Checks	2018/11/7	2023/10/20	critical
118796	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : ppp vulnerability (USN-3810-1)	Nessus	Ubuntu Local Security Checks	2018/11/7	2023/10/20	critical
110790	Fedora 27 : ppp (2018-b99d43ee9b)	Nessus	Fedora Local Security Checks	2018/6/29	2021/1/6	critical
110790	Fedora 27：ppp（2018-b99d43ee9b）	Nessus	Fedora Local Security Checks	2018/6/29	2021/1/6	critical
118796	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : pppの脆弱性 (USN-3810-1)	Nessus	Ubuntu Local Security Checks	2018/11/7	2023/10/20	critical
149128	EulerOS 2.0 SP3 : ppp (EulerOS-SA-2021-1834)	Nessus	Huawei Local Security Checks	2021/4/30	2024/1/3	critical
142300	EulerOS 2.0 SP2 : ppp (EulerOS-SA-2020-2387)	Nessus	Huawei Local Security Checks	2020/11/3	2024/2/12	critical
120707	Fedora 28 : ppp (2018-aed26fc705)	Nessus	Fedora Local Security Checks	2019/1/3	2024/7/1	critical

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