远程 Oracle Linux 9 主机上安装的多个程序包受到 ELSA-2023-12850 公告中提及的一个漏洞影响。

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

请注意，Nessus 尚未测试此问题，而是只依据应用程序自我报告的版本号进行判断。

远程 Redhat Enterprise Linux 8 主机上安装的程序包受到 RHSA-2023：5455 公告提及的多个漏洞影响。

  - 在 glibc 中发现一个缺陷。当使用 AF_UNSPEC 地址系列调用 getaddrinfo 函数，且系统通过 /etc/resolv.conf 配置为 no-aaaa 模式时，通过 TCP 发送的 DNS 响应如果大于 2048 字节，就有可能通过函数返回的地址数据泄露堆栈内容，并可能造成崩溃。(CVE-2023-4527)

  - 在 glibc 中发现一个缺陷。在极为罕见的情况下，getaddrinfo 函数可能会访问已被释放的内存，进而导致应用程序崩溃。仅当 NSS 模块仅实现 _nss_*_gethostbyname2_r 和 _nss_*_getcanonname_r hook 而不实现 
    _nss__*_gethostbyname3_r hook 时，此问题才能被利用。解析的名称应返回大量 IPv6 和 IPv4，而对 getaddrinfo 函数的调用则应使用 AF_INET6 地址系列，并将 AI_CANONNAME、AI_ALL 和 AI_V4MAPPED 作为标记。(CVE-2023-4806)

  - 在 glibc 中发现一个缺陷。在不常见的情况下，gaih_inet 函数可能会使用已被释放的内存，进而导致应用程序崩溃。仅当调用 getaddrinfo 函数且 /etc/nsswitch.conf 中的主机数据库被配置为 SUCCESS=continue 或 SUCCESS=merge 时，此问题才能被利用。
    (CVE-2023-4813)

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

远程 Oracle Linux 8 主机上安装的多个程序包受到 ELSA-2023-12851 公告中提及的漏洞的影响。

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

请注意，Nessus 尚未测试此问题，而是只依据应用程序自我报告的版本号进行判断。

远程 AlmaLinux 8 主机上存在安装的程序包该程序包受到 ALSA-2023:5455 公告中提及的多个漏洞的影响。

  - 在 glibc 中发现一个缺陷。当使用 AF_UNSPEC 地址系列调用 getaddrinfo 函数，且系统通过 /etc/resolv.conf 配置为 no-aaaa 模式时，通过 TCP 发送的 DNS 响应如果大于 2048 字节，就有可能通过函数返回的地址数据泄露堆栈内容，并可能造成崩溃。(CVE-2023-4527)

  - 在 glibc 中发现一个缺陷。在极为罕见的情况下，getaddrinfo 函数可能会访问已被释放的内存，进而导致应用程序崩溃。仅当 NSS 模块仅实现 _nss_*_gethostbyname2_r 和 _nss_*_getcanonname_r hook 而不实现 
    _nss__*_gethostbyname3_r hook 时，此问题才能被利用。解析的名称应返回大量 IPv6 和 IPv4，而对 getaddrinfo 函数的调用则应使用 AF_INET6 地址系列，并将 AI_CANONNAME、AI_ALL 和 AI_V4MAPPED 作为标记。(CVE-2023-4806)

  - 在 glibc 中发现一个缺陷。在不常见的情况下，gaih_inet 函数可能会使用已被释放的内存，进而导致应用程序崩溃。仅当调用 getaddrinfo 函数且 /etc/nsswitch.conf 中的主机数据库被配置为 SUCCESS=continue 或 SUCCESS=merge 时，此问题才能被利用。
    (CVE-2023-4813)

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

远程 Oracle Linux 9 主机上安装的多个程序包受到 ELSA-2023-12854 公告中提及的一个漏洞影响。

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

请注意，Nessus 尚未测试此问题，而是只依据应用程序自我报告的版本号进行判断。

远程 Oracle Linux 8 主机上安装的程序包受到 ELSA-2023-5455 公告中提及的多个漏洞的影响。

  - 在 glibc 中发现一个缺陷。当使用 AF_UNSPEC 地址系列调用 getaddrinfo 函数，且系统通过 /etc/resolv.conf 配置为 no-aaaa 模式时，通过 TCP 发送的 DNS 响应如果大于 2048 字节，就有可能通过函数返回的地址数据泄露堆栈内容，并可能造成崩溃。(CVE-2023-4527)

  - 在 glibc 中发现一个缺陷。在极为罕见的情况下，getaddrinfo 函数可能会访问已被释放的内存，进而导致应用程序崩溃。仅当 NSS 模块仅实现 _nss_*_gethostbyname2_r 和 _nss_*_getcanonname_r hook 而不实现 
    _nss__*_gethostbyname3_r hook 时，此问题才能被利用。解析的名称应返回大量 IPv6 和 IPv4，而对 getaddrinfo 函数的调用则应使用 AF_INET6 地址系列，并将 AI_CANONNAME、AI_ALL 和 AI_V4MAPPED 作为标记。(CVE-2023-4806)

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

  - 在 glibc 中发现一个缺陷。在不常见的情况下，gaih_inet 函数可能会使用已被释放的内存，进而导致应用程序崩溃。仅当调用 getaddrinfo 函数且 /etc/nsswitch.conf 中的主机数据库被配置为 SUCCESS=continue 或 SUCCESS=merge 时，此问题才能被利用。
    (CVE-2023-4813)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

远程 CentOS Linux 8 主机上安装的程序包受到 CESA-2023: 5455 公告提及的多个漏洞影响。

  - 在 glibc 中发现一个缺陷。当使用 AF_UNSPEC 地址系列调用 getaddrinfo 函数，且系统通过 /etc/resolv.conf 配置为 no-aaaa 模式时，通过 TCP 发送的 DNS 响应如果大于 2048 字节，就有可能通过函数返回的地址数据泄露堆栈内容，并可能造成崩溃。(CVE-2023-4527)

  - 在 glibc 中发现一个缺陷。在极为罕见的情况下，getaddrinfo 函数可能会访问已被释放的内存，进而导致应用程序崩溃。仅当 NSS 模块仅实现 _nss_*_gethostbyname2_r 和 _nss_*_getcanonname_r hook 而不实现 
    _nss__*_gethostbyname3_r hook 时，此问题才能被利用。解析的名称应返回大量 IPv6 和 IPv4，而对 getaddrinfo 函数的调用则应使用 AF_INET6 地址系列，并将 AI_CANONNAME、AI_ALL 和 AI_V4MAPPED 作为标记。(CVE-2023-4806)

  - 在 glibc 中发现一个缺陷。在不常见的情况下，gaih_inet 函数可能会使用已被释放的内存，进而导致应用程序崩溃。仅当调用 getaddrinfo 函数且 /etc/nsswitch.conf 中的主机数据库被配置为 SUCCESS=continue 或 SUCCESS=merge 时，此问题才能被利用。
    (CVE-2023-4813)

  - 在处理 GLIBC_TUNABLES 环境变量时，在 GNU C 库的动态加载程序 ld.so 中发现缓冲区溢出情形。本地攻击者可利用此问题，在以 SUID 权限启动二进制文件时使用恶意构建的 GLIBC_TUNABLES 环境变量，进而以提升的特权执行代码。(CVE-2023-4911)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-359 advisory.

    A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and     the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048     bytes can potentially disclose stack contents through the function returned address data, and may cause a     crash. (CVE-2023-4527)

    A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that     has been freed, resulting in an application crash. This issue is only exploitable when a NSS module     implements only the nss_gethostbyname2_r and nss_getcanonname_r hooks without implementing the     nss*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call     to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and     AI_V4MAPPED as flags. (CVE-2023-4806)

    A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been     freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is     called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.
    (CVE-2023-4813)

    A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the     GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted     GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with     elevated privileges. (CVE-2023-4911)

Tenable has extracted the preceding description block directly from the tested product 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 Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-12850 advisory.

    [2.34-60.0.3]
    - CVE-2023-4911: tunables: Terminate immediately if end of input is reached       Reviewed by: Jose E. Marchesi <jose.marchesi@oracle.com>

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

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:5455 advisory.

    The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard     math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system.
    Without these libraries, the Linux system cannot function correctly.

    Security Fix(es):

    * glibc: buffer overflow in ld.so leading to privilege escalation (CVE-2023-4911)

    * glibc: Stack read overflow in getaddrinfo in no-aaaa mode (CVE-2023-4527)

    * glibc: potential use-after-free in getaddrinfo() (CVE-2023-4806)

    * glibc: potential use-after-free in gaih_inet() (CVE-2023-4813)

    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.

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.

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-12851 advisory.

    [2.28-225.0.4]
    - CVE-2023-4911: tunables: Terminate immediately if end of input is reached       Reviewed by: Jose E. Marchesi <jose.marchesi@oracle.com>

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

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

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:5455 advisory.

  - A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and     the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048     bytes can potentially disclose stack contents through the function returned address data, and may cause a     crash. (CVE-2023-4527)

  - A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that     has been freed, resulting in an application crash. This issue is only exploitable when a NSS module     implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the
    _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the     call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and     AI_V4MAPPED as flags. (CVE-2023-4806)

  - A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been     freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is     called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.
    (CVE-2023-4813)

  - A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the     GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted     GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with     elevated privileges. (CVE-2023-4911)

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 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-12854 advisory.

    [2.34-60.0.3]
    - CVE-2023-4911: tunables: Terminate immediately if end of input is reached       Reviewed by: Jose E. Marchesi <jose.marchesi@oracle.com>

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

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-2023-5455 advisory.

    - CVE-2023-4527: Stack read overflow in getaddrinfo in no-aaa mode.
    - CVE-2023-4813: potential use-after-free in gaih_inet (RHEL-2435).

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 version of glibc installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-4911 advisory.

  - A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the     GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted     GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with     elevated privileges. (CVE-2023-4911)

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-2023:5455 advisory.

  - A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and     the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048     bytes can potentially disclose stack contents through the function returned address data, and may cause a     crash. (CVE-2023-4527)

  - A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that     has been freed, resulting in an application crash. This issue is only exploitable when a NSS module     implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the
    _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the     call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and     AI_V4MAPPED as flags. (CVE-2023-4806)

  - A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been     freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is     called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.
    (CVE-2023-4813)

  - A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the     GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted     GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with     elevated privileges. (CVE-2023-4911)

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 glibc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that     has been freed, resulting in an application crash. This issue is only exploitable when a NSS module     implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the
    _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the     call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and     AI_V4MAPPED as flags. (CVE-2023-4806)

  - A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been     freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is     called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.
    (CVE-2023-4813)

  - A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the     GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted     GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with     elevated privileges. (CVE-2023-4911)

  - A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a     memory leak, which may result in an application crash. (CVE-2023-5156)

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
182576	Oracle Linux 9：glibc (ELSA-2023-12850)	Nessus	Oracle Linux Local Security Checks	2023/10/5	2025/9/9	high
182608	RHEL 8：glibc (RHSA-2023: 5455)	Nessus	Red Hat Local Security Checks	2023/10/5	2024/11/8	high
182611	Oracle Linux 8：glibc (ELSA-2023-12851)	Nessus	Oracle Linux Local Security Checks	2023/10/5	2025/9/9	high
182688	AlmaLinux 8glibc (ALSA-2023:5455)	Nessus	Alma Linux Local Security Checks	2023/10/6	2024/1/29	high
182698	Oracle Linux 9：glibc (ELSA-2023-12854)	Nessus	Oracle Linux Local Security Checks	2023/10/6	2025/9/9	high
182847	Oracle Linux 8：glibc (ELSA-2023-5455)	Nessus	Oracle Linux Local Security Checks	2023/10/10	2025/9/9	high
190215	CentOS 8：glibc (CESA-2023: 5455)	Nessus	CentOS Local Security Checks	2024/2/8	2024/2/9	high
182454	Amazon Linux 2023 : compat-libpthread-nonshared, glibc, glibc-all-langpacks (ALAS2023-2023-359)	Nessus	Amazon Linux Local Security Checks	2023/10/3	2024/12/11	high
182576	Oracle Linux 9 : glibc (ELSA-2023-12850)	Nessus	Oracle Linux Local Security Checks	2023/10/5	2025/9/9	high
182608	RHEL 8 : glibc (RHSA-2023:5455)	Nessus	Red Hat Local Security Checks	2023/10/5	2024/11/8	high
182611	Oracle Linux 8 : glibc (ELSA-2023-12851)	Nessus	Oracle Linux Local Security Checks	2023/10/5	2025/9/9	high
182688	AlmaLinux 8 : glibc (ALSA-2023:5455)	Nessus	Alma Linux Local Security Checks	2023/10/6	2024/1/29	high
182698	Oracle Linux 9 : glibc (ELSA-2023-12854)	Nessus	Oracle Linux Local Security Checks	2023/10/6	2025/9/9	high
182847	Oracle Linux 8 : glibc (ELSA-2023-5455)	Nessus	Oracle Linux Local Security Checks	2023/10/10	2025/9/9	high
183061	CBL Mariner 2.0 Security Update: glibc (CVE-2023-4911)	Nessus	MarinerOS Local Security Checks	2023/10/13	2025/2/10	high
190215	CentOS 8 : glibc (CESA-2023:5455)	Nessus	CentOS Local Security Checks	2024/2/8	2024/2/9	high
192379	EulerOS Virtualization 2.11.1 : glibc (EulerOS-SA-2024-1398)	Nessus	Huawei Local Security Checks	2024/3/21	2024/3/21	high

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