The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6407-1 advisory.

    Gregory James Duck discovered that libx11 incorrectly handled certain keyboard symbols. If a user were     tricked into connecting to a malicious X server, a remote attacker could use this issue to cause libx11 to     crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-43785)

    Yair Mizrahi discovered that libx11 incorrectly handled certain malformed XPM image files. If a user were     tricked into opening a specially crafted XPM image file, a remote attacker could possibly use this issue     to consume memory, leading to a denial of service. (CVE-2023-43786)

    Yair Mizrahi discovered that libx11 incorrectly handled certain malformed XPM image files. If a user were     tricked into opening a specially crafted XPM image file, a remote attacker could use this issue to cause     libx11 to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2023-43787)

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.

The remote host is affected by the vulnerability described in GLSA-202407-21 (X.Org X11 library: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in X.Org X11 library. Please review the CVE identifiers     referenced below for details.

Tenable has extracted the preceding description block directly from the Gentoo 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 libX11 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function.
    This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on     the system. (CVE-2023-43785)

  - A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw     allows a local user to consume all available system resources and cause a denial of service condition.
    (CVE-2023-43786)

  - A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This     flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated     privileges. (CVE-2023-43787)

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 versions of the libX11 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function.
    This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on     the system. (CVE-2023-43785)

  - A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw     allows a local user to consume all available system resources and cause a denial of service condition.
    (CVE-2023-43786)

  - A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This     flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated     privileges. (CVE-2023-43787)

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.

An update of the libX11 package has been released.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-383 advisory.

    libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

    A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw     allows a local user to consume all available system resources and cause a denial of service condition.
    (CVE-2023-43786)

    libX11: integer overflow in XCreateImage() leading to a heap overflow. (CVE-2023-43787)

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 version of libX11 installed on the remote host is prior to 1.6.0-2.2.16. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1859 advisory.

    libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

    libX11: integer overflow in XCreateImage() leading to a heap overflow. (CVE-2023-43787)

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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2145 advisory.

    The libX11 packages contain the core X11 protocol client library.

    Security Fix(es):

    * libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

    * libX11: stack exhaustion from infinite recursion in PutSubImage() (CVE-2023-43786)

    * libX11: integer overflow in XCreateImage() leading to a heap overflow (CVE-2023-43787)

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes     linked from 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 RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:2973 advisory.

    * libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

    * libX11: stack exhaustion from infinite recursion in PutSubImage() (CVE-2023-43786)

    * libX11: integer overflow in XCreateImage() leading to a heap overflow (CVE-2023-43787)

Tenable has extracted the preceding description block directly from the RockyLinux 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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2973 advisory.

    The libX11 packages contain the core X11 protocol client library.

    Security Fix(es):

    * libX11: out-of-bounds memory access in _XkbReadKeySyms() (CVE-2023-43785)

    * libX11: stack exhaustion from infinite recursion in PutSubImage() (CVE-2023-43786)

    * libX11: integer overflow in XCreateImage() leading to a heap overflow (CVE-2023-43787)

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.10 Release Notes     linked from 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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
182471	Ubuntu 20.04 LTS / 22.04 LTS / 23.04 : libx11 vulnerabilities (USN-6407-1)	Nessus	Ubuntu Local Security Checks	2023/10/3	2024/8/27	high
201938	GLSA-202407-21 : X.Org X11 library: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2024/7/6	2025/9/24	high
192091	EulerOS Virtualization 2.10.0 : libX11 (EulerOS-SA-2024-1383)	Nessus	Huawei Local Security Checks	2024/3/14	2024/3/14	high
192365	EulerOS Virtualization 2.11.1 : libX11 (EulerOS-SA-2024-1402)	Nessus	Huawei Local Security Checks	2024/3/21	2024/3/21	high
197229	EulerOS Virtualization 3.0.6.6 : libX11 (EulerOS-SA-2024-1657)	Nessus	Huawei Local Security Checks	2024/5/17	2024/5/17	high
204305	Photon OS 4.0: Libx11 PHSA-2023-4.0-0486	Nessus	PhotonOS Local Security Checks	2024/7/24	2024/7/24	high
183823	Amazon Linux 2023 : libX11, libX11-common, libX11-devel (ALAS2023-2023-383)	Nessus	Amazon Linux Local Security Checks	2023/10/24	2024/12/11	high
183849	Amazon Linux AMI : libX11 (ALAS-2023-1859)	Nessus	Amazon Linux Local Security Checks	2023/10/25	2024/12/11	high
194776	RHEL 9 : libX11 (RHSA-2024:2145)	Nessus	Red Hat Local Security Checks	2024/4/30	2024/11/7	high
235513	RockyLinux 8 : libX11 (RLSA-2024:2973)	Nessus	Rocky Linux Local Security Checks	2025/5/7	2025/5/7	high
197769	RHEL 8 : libX11 (RHSA-2024:2973)	Nessus	Red Hat Local Security Checks	2024/5/23	2024/11/7	high

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