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)

    Multiple vulnerabilities have been discovered in X.Org X server, XWayland. 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.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4483-1 advisory.

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

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2023:0046-1 advisory.

  - xorg-x11-server: X.Org Server XkbGetKbdByName use-after-free (CVE-2022-4283)

  - xorg-x11-server: X.Org Server XTestSwapFakeInput stack overflow (CVE-2022-46340)

  - xorg-x11-server: X.Org Server XIPassiveUngrab out-of-bounds access (CVE-2022-46341)

  - xorg-x11-server: X.Org Server XvdiSelectVideoNotify use-after-free (CVE-2022-46342)

  - xorg-x11-server: X.Org Server ScreenSaverSetAttributes use-after-free (CVE-2022-46343)

  - xorg-x11-server: X.Org Server XIChangeProperty out-of-bounds access (CVE-2022-46344)

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

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	2025/9/24	high
168780	SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2022:4483-1)	Nessus	SuSE Local Security Checks	2022/12/15	2023/7/14	high
169876	Scientific Linux Security Update : xorg-x11-server on SL7.x i686/x86_64 (2023:0046)	Nessus	Scientific Linux Local Security Checks	2023/1/11	2023/1/11	high

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