The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-2806 advisory.

    - Fix CVE-2023-0494 (#2166977)
    - Follow-up fix for CVE-2022-46340 (#2151774)
    - CVE fix for: CVE-2022-4283 (#2151799), CVE-2022-46340 (#2151774),       CVE-2022-46341 (#2151779), CVE-2022-46342 (#2151784),       CVE-2022-46343 (#2151789), CVE-2022-46344 (#2151794)

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 host is affected by the vulnerability described in GLSA-202305-30 (X.Org X server, XWayland: Multiple Vulnerabilities)

  - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access     can occur in the SProcRenderCompositeGlyphs function. The highest threat from this vulnerability is to     data confidentiality and integrity as well as system availability. (CVE-2021-4008)

  - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access     can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2021-4009)

  - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access     can occur in the SProcScreenSaverSuspend function. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2021-4010)

  - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access     can occur in the SwapCreateRegister function. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2021-4011)

  - A vulnerability classified as critical was found in X.org Server. Affected by this vulnerability is the     function _GetCountedString of the file xkb/xkb.c. The manipulation leads to buffer overflow. It is     recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is     VDB-211051. (CVE-2022-3550)

  - A vulnerability, which was classified as problematic, has been found in X.org Server. Affected by this     issue is the function ProcXkbGetKbdByName of the file xkb/xkb.c. The manipulation leads to memory leak. It     is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211052.
    (CVE-2022-3551)

  - A vulnerability, which was classified as problematic, was found in X.org Server. This affects an unknown     part of the file hw/xquartz/X11Controller.m of the component xquartz. The manipulation leads to denial of     service. It is recommended to apply a patch to fix this issue. The identifier VDB-211053 was assigned to     this vulnerability. (CVE-2022-3553)

  - A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a     dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName     requests.. This issue can lead to local privileges elevation on systems where the X server is running     privileged and remote code execution for ssh X forwarding sessions. (CVE-2022-4283)

  - A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the     XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger     than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges     elevation on systems where the X server is running privileged and remote code execution for ssh X     forwarding sessions. This issue does not affect systems where client and server use the same byte order.
    (CVE-2022-46340)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIPassiveUngrab     request accesses out-of-bounds memory when invoked with a high keycode or button code. This issue can lead     to local privileges elevation on systems where the X server is running privileged and remote code     execution for ssh X forwarding sessions. (CVE-2022-46341)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the     XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local     privileges elevation on systems where the X se (CVE-2022-46342)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the     ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local     privileges elevation on systems where the X server is running privileged and remote code execution for ssh     X forwarding sessions. (CVE-2022-46343)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty     request has a length-validation issues, resulting in out-of-bounds memory reads and potential information     disclosure. This issue can lead to local privileges elevation on systems where the X server is running     privileged and remote code execution for ssh X forwarding sessions. (CVE-2022-46344)

  - A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses     that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed     memory. This can lead to local privilege elevation on systems where the X server runs privileged and     remote code execution for ssh X forwarding sessions. (CVE-2023-0494)

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

  -  Please review the referenced CVE identifiers for details.  (CVE-2022-46283)

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 flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry     function due to improper validation of the request length. (CVE-2022-2319)

  - A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of     ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data,     which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to     escalate privileges and execute arbitrary code in the context of root. (CVE-2022-2320)

  - A vulnerability classified as critical was found in X.org Server. Affected by this vulnerability is the     function _GetCountedString of the file xkb/xkb.c. The manipulation leads to buffer overflow. It is     recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is     VDB-211051. (CVE-2022-3550)

  - A vulnerability, which was classified as problematic, has been found in X.org Server. Affected by this     issue is the function ProcXkbGetKbdByName of the file xkb/xkb.c. The manipulation leads to memory leak. It     is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211052.
    (CVE-2022-3551)

  - A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a     dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName     requests.. This issue can lead to local privileges elevation on systems where the X server is running     privileged and remote code execution for ssh X forwarding sessions. (CVE-2022-4283)

  - A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the     XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger     than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges     elevation on systems where the X server is running privileged and remote code execution for ssh X     forwarding sessions. This issue does not affect systems where client and server use the same byte order.
    (CVE-2022-46340)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIPassiveUngrab     request accesses out-of-bounds memory when invoked with a high keycode or button code. This issue can lead     to local privileges elevation on systems where the X server is running privileged and remote code     execution for ssh X forwarding sessions. (CVE-2022-46341)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the     XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local     privileges elevation on systems where the X se (CVE-2022-46342)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the     ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local     privileges elevation on systems where the X server is running privileged and remote code execution for ssh     X forwarding sessions. (CVE-2022-46343)

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty     request has a length-validation issues, resulting in out-of-bounds memory reads and potential information     disclosure. This issue can lead to local privileges elevation on systems where the X server is running     privileged and remote code execution for ssh X forwarding sessions. (CVE-2022-46344)

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
176275	Oracle Linux 8 : xorg-x11-server (ELSA-2023-2806)	Nessus	Oracle Linux Local Security Checks	2023/5/24	2024/11/2	high
176467	GLSA-202305-30 : X.Org X server, XWayland: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2023/5/30	2023/5/30	high
177161	EulerOS Virtualization 3.0.6.0 : xorg-x11-server (EulerOS-SA-2023-2234)	Nessus	Huawei Local Security Checks	2023/6/13	2023/6/13	high

偵測

搜尋 Plugin

high

high

high