GLSA-202210-30 : X.Org X server, XWayland: Multiple Vulnerabilities

high Nessus Plugin ID 166710

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Description

The remote host is affected by the vulnerability described in GLSA-202210-30 (X.Org X server, XWayland: Multiple 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)

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

Solution

All X.Org X server users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=x11-base/xorg-server-21.1.4 All XWayland users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=x11-base/xwayland-22.1.3

See Also

https://security.gentoo.org/glsa/202210-30

https://bugs.gentoo.org/show_bug.cgi?id=857780

Plugin Details

Severity: High

ID: 166710

File Name: gentoo_GLSA-202210-30.nasl

Version: 1.2

Type: local

Published: 10/31/2022

Updated: 10/31/2022

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2022-2320

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:xorg-server, p-cpe:/a:gentoo:linux:xwayland, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/31/2022

Vulnerability Publication Date: 8/4/2022

Reference Information

CVE: CVE-2022-2319, CVE-2022-2320