Bug 2140698 (CVE-2022-3550) - CVE-2022-3550 xorg-x11-server: buffer overflow in _GetCountedString() in xkb/xkb.c
Summary: CVE-2022-3550 xorg-x11-server: buffer overflow in _GetCountedString() in xkb/...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-3550
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2140766 2140767 2140768 2140769 2140699 2140700 2140765
Blocks: 2135594
TreeView+ depends on / blocked
 
Reported: 2022-11-07 16:47 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-12-07 07:33 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the xorg-x11-server package. A buffer overflow can occur in the _GetCountedString function in xkb/xkb.c due to improper input validation, allowing for possible escalation of privileges, execution of arbitrary code, or a denial of service.
Clone Of:
Environment:
Last Closed: 2022-12-07 07:33:06 UTC


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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:8491 0 None None None 2022-11-16 10:12:24 UTC

Description Guilherme de Almeida Suckevicz 2022-11-07 16:47:32 UTC
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.

Reference:
https://vuldb.com/?id.211051

Upstream patch:
https://cgit.freedesktop.org/xorg/xserver/commit/?id=11beef0b7f1ed290348e45618e5fa0d2bffcb72e

Comment 1 Guilherme de Almeida Suckevicz 2022-11-07 16:47:54 UTC
Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 2140699]


Created xorg-x11-server-Xwayland tracking bugs for this issue:

Affects: fedora-all [bug 2140700]

Comment 6 errata-xmlrpc 2022-11-16 10:12:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:8491 https://access.redhat.com/errata/RHSA-2022:8491

Comment 7 Product Security DevOps Team 2022-12-07 07:33:05 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-3550


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