The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8021:04 advisory.

    * xorg-x11-server: Out-of-bounds write in XIChangeDeviceProperty/RRChangeOutputProperty (CVE-2023-5367)
      * xorg-x11-server: out-of-bounds memory reads/writes in XKB button actions (CVE-2023-6377)
      * xorg-x11-server: out-of-bounds memory read in RRChangeOutputProperty and RRChangeProviderProperty     (CVE-2023-6478)
      * xorg-x11-server: Heap buffer overflow in DeviceFocusEvent and ProcXIQueryPointer (CVE-2023-6816)
      * xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access     (CVE-2024-0229)
      * xorg-x11-server: SELinux unlabeled GLX PBuffer (CVE-2024-0408)
      * xorg-x11-server: SELinux context corruption (CVE-2024-0409)
      * xorg-x11-server: heap buffer overflow in XISendDeviceHierarchyEvent (CVE-2024-21885)
      * xorg-x11-server: heap buffer overflow in DisableDevice (CVE-2024-21886)
      * xorg-x11-server: Use-after-free bug in DestroyWindow (CVE-2023-5380)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 xorg-x11-server package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to     a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or     possible remote code execution in cases where X11 forwarding is involved. (CVE-2023-6377)

  - A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or     RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive     information. (CVE-2023-6478)

  - A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for     each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the     X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap     overflow if a bigger value was used. (CVE-2023-6816)

  - An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a     device frozen by a sync grab is reattached to a different master device. This issue may lead to an     application crash, local privilege escalation (if the server runs with extended privileges), or remote     code execution in SSH X11 forwarding environments. (CVE-2024-0229)

  - A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the     buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a     GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the     XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.
    (CVE-2024-0408)

  - A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of     private at creation. It uses the cursor bits type with the cursor as private, and when initiating the     cursor, that overwrites the XSELINUX context. (CVE-2024-0409)

  - A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the     allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can     trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution     in SSH X11 forwarding environments. (CVE-2024-21885)

  - A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may     lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding     environments. (CVE-2024-21886)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-522 advisory.

    A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to     a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or     possible remote code execution in cases where X11 forwarding is involved. (CVE-2023-6377)

    A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or     RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive     information. (CVE-2023-6478)

    Heap buffer overflow in DeviceFocusEvent and ProcXIQueryPointer

    NOTE: https://lists.x.org/archives/xorg/2024-January/061525.htmlNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/9e2ecb2af8302dedc49cb6a63ebe063c58a9e7e3     (CVE-2023-6816)

    Reattaching to different master device may lead to out-of-bounds memory access

    NOTE: https://lists.x.org/archives/xorg/2024-January/061525.htmlNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/ece23be888a93b741aa1209d1dbf64636109d6a5NOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/219c54b8a3337456ce5270ded6a67bcde53553d5NOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/df3c65706eb169d5938df0052059f3e0d5981b74     (CVE-2024-0229)

    SELinux unlabeled GLX PBuffer

    NOTE: https://lists.x.org/archives/xorg/2024-January/061525.htmlNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/e5e8586a12a3ec915673edffa10dc8fe5e15dac3     (CVE-2024-0408)

    SELinux context corruption

    NOTE: https://lists.x.org/archives/xorg/2024-January/061525.htmlNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/2ef0f1116c65d5cb06d7b6d83f8a1aea702c94f7     (CVE-2024-0409)

    Heap buffer overflow in XISendDeviceHierarchyEvent

    NOTE: https://lists.x.org/archives/xorg/2024-January/061525.htmlNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/4a5e9b1895627d40d26045bd0b7ef3dce503cbd1     (CVE-2024-21885)

    Heap buffer overflow in DisableDevice

    NOTE: https://lists.x.org/archives/xorg/2024-January/061525.htmlNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/bc1fdbe46559dd947674375946bbef54dd0ce36bNOTE:
    https://gitlab.freedesktop.org/xorg/xserver/-/commit/26769aa71fcbe0a8403b7fb13b7c9010cc07c3a8     (CVE-2024-21886)

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 Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0568 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2024-31080:
    A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents()     function. This issue occurs when byte-swapped length values are used in replies, potentially leading to     memory leakage and segmentation faults, particularly when triggered by a client with a different     endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory     values and then transmit them back to the client until encountering an unmapped page, resulting in a     crash. Despite the attacker's inability to control the specific memory copied into the replies, the small     length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds     reads.

    CVE-2024-31081:
    A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice()     function. This issue occurs when byte-swapped length values are used in replies, potentially leading to     memory leakage and segmentation faults, particularly when triggered by a client with a different     endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory     values and then transmit them back to the client until encountering an unmapped page, resulting in a     crash. Despite the attacker's inability to control the specific memory copied into the replies, the small     length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds     reads.

    CVE-2023-6478:
    A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or     RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive     information.

    CVE-2023-5367:
    A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect     calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function     in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible     escalation of privileges or denial of service.

    CVE-2023-5380:
    A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and     legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if     the pointer is warped from within a window on one screen to the root window of the other screen and if the     original window is destroyed followed by another window being destroyed.

    CVE-2023-6816:
    A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for     each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the     X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap     overflow if a bigger value was used.

    CVE-2024-0229:
    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a     device frozen by a sync grab is reattached to a different master device. This issue may lead to an     application crash, local privilege escalation (if the server runs with extended privileges), or remote     code execution in SSH X11 forwarding environments.

    CVE-2024-21885:
    A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the     allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can     trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution     in SSH X11 forwarding environments.

    CVE-2024-21886:
    A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may     lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding     environments.

    CVE-2024-0408:
    A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the     buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a     GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the     XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.

    CVE-2024-0409:
    A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of     private at creation. It uses the cursor bits type with the cursor as private, and when initiating the     cursor, that overwrites the XSELINUX context.

Tenable has extracted the preceding description block directly from the Tencent 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 SUSE Linux SLED15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0165-1 advisory.

    - CVE-2023-6816: Fixed heap buffer overflow in DeviceFocusEvent and ProcXIQueryPointer (bsc#1218582)
      - CVE-2024-0229: Fixed reattaching to different master device may lead to out-of-bounds memory access     (bsc#1218583)
      - CVE-2024-0408: Fixed SELinux unlabeled GLX PBuffer. (bsc#1218845)
      - CVE-2024-0409: Fixed SELinux context corruption. (bsc#1218846)
      - CVE-2024-21885: Fixed heap buffer overflow in XISendDeviceHierarchyEvent (bsc#1218584)
      - CVE-2024-21886: Fixed heap buffer overflow in DisableDevice (bsc#1218585)

Tenable has extracted the preceding description block directly from the SUSE 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 CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0320 advisory.

  - A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for     each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the     X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap     overflow if a bigger value was used. (CVE-2023-6816)

  - An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a     device frozen by a sync grab is reattached to a different master device. This issue may lead to an     application crash, local privilege escalation (if the server runs with extended privileges), or remote     code execution in SSH X11 forwarding environments. (CVE-2024-0229)

  - A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the     buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a     GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the     XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.
    (CVE-2024-0408)

  - A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of     private at creation. It uses the cursor bits type with the cursor as private, and when initiating the     cursor, that overwrites the XSELINUX context. (CVE-2024-0409)

  - A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the     allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can     trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution     in SSH X11 forwarding environments. (CVE-2024-21885)

  - A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may     lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding     environments. (CVE-2024-21886)

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

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-05db4bcbec advisory.

    CVE fix for: CVE-2023-6816, CVE-2024-0229, CVE-2024-21885,     CVE-2024-21886, CVE-2024-0408, CVE-2024-0409

Tenable has extracted the preceding description block directly from the Fedora 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 tigervnc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may     lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding     environments.(CVE-2024-21886)

    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a     device frozen by a sync grab is reattached to a different master device. This issue may lead to an     application crash, local privilege escalation (if the server runs with extended privileges), or remote     code execution in SSH X11 forwarding environments.(CVE-2024-0229)

    A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the     allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can     trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution     in SSH X11 forwarding environments.(CVE-2024-21885)

    A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the     buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a     GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the     XSELINUX code will try to use an object that was never labeled and crash because the SID is     NULL.(CVE-2024-0408)

    A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for     each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the     X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap     overflow if a bigger value was used.(CVE-2023-6816)

    A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of     private at creation. It uses the cursor bits type with the cursor as private, and when initiating the     cursor, that overwrites the XSELINUX context.(CVE-2024-0409)

Tenable has extracted the preceding description block directly from the EulerOS tigervnc 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 xorg-x11-server packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may     lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding     environments.(CVE-2024-21886)

    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a     device frozen by a sync grab is reattached to a different master device. This issue may lead to an     application crash, local privilege escalation (if the server runs with extended privileges), or remote     code execution in SSH X11 forwarding environments.(CVE-2024-0229)

    A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the     allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can     trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution     in SSH X11 forwarding environments.(CVE-2024-21885)

    A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the     buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a     GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the     XSELINUX code will try to use an object that was never labeled and crash because the SID is     NULL.(CVE-2024-0408)

    A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for     each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the     X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap     overflow if a bigger value was used.(CVE-2023-6816)

    A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of     private at creation. It uses the cursor bits type with the cursor as private, and when initiating the     cursor, that overwrites the XSELINUX context.(CVE-2024-0409)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization xorg-x11-server 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 tigervnc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the     buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a     GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the     XSELINUX code will try to use an object that was never labeled and crash because the SID is     NULL.(CVE-2024-0408)

    A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of     private at creation. It uses the cursor bits type with the cursor as private, and when initiating the     cursor, that overwrites the XSELINUX context.(CVE-2024-0409)

    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a     device frozen by a sync grab is reattached to a different master device. This issue may lead to an     application crash, local privilege escalation (if the server runs with extended privileges), or remote     code execution in SSH X11 forwarding environments.(CVE-2024-0229)

    A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for     each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the     X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap     overflow if a bigger value was used.(CVE-2023-6816)

    A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may     lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding     environments.(CVE-2024-21886)

    A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the     allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can     trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution     in SSH X11 forwarding environments.(CVE-2024-21885)

Tenable has extracted the preceding description block directly from the EulerOS tigervnc 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
293693	MiracleLinux 9 : xorg-x11-server-1.20.11-24.el9 (AXSA:2024-8021:04)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	critical
191990	EulerOS 2.0 SP10 : xorg-x11-server (EulerOS-SA-2024-1352)	Nessus	Huawei Local Security Checks	2024/3/12	2024/3/12	critical
190736	Amazon Linux 2023 : xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source (ALAS2023-2024-522)	Nessus	Amazon Linux Local Security Checks	2024/2/20	2024/12/11	critical
276083	TencentOS Server 4: xorg-x11-server (TSSA-2024:0568)	Nessus	Tencent Local Security Checks	2025/11/20	2025/11/20	critical
189257	SUSE SLED15 Security Update : xwayland (SUSE-SU-2024:0165-1)	Nessus	SuSE Local Security Checks	2024/1/20	2026/6/25	critical
189284	CentOS 7 : xorg-x11-server (RHSA-2024:0320)	Nessus	CentOS Local Security Checks	2024/1/22	2024/10/9	critical
189871	Fedora 38 : xorg-x11-server-Xwayland (2024-05db4bcbec)	Nessus	Fedora Local Security Checks	2024/2/1	2024/11/15	critical
203697	EulerOS 2.0 SP8 : tigervnc (EulerOS-SA-2024-2062)	Nessus	Huawei Local Security Checks	2024/7/23	2024/7/23	critical
204751	EulerOS Virtualization 3.0.6.0 : xorg-x11-server (EulerOS-SA-2024-2067)	Nessus	Huawei Local Security Checks	2024/7/25	2024/7/25	critical
205032	EulerOS 2.0 SP5 : tigervnc (EulerOS-SA-2024-2077)	Nessus	Huawei Local Security Checks	2024/8/6	2024/8/6	critical

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