Bug 2272000 (CVE-2024-31083) - CVE-2024-31083 xorg-x11-server: Use-after-free in ProcRenderAddGlyphs
Summary: CVE-2024-31083 xorg-x11-server: Use-after-free in ProcRenderAddGlyphs
Keywords:
Status: NEW
Alias: CVE-2024-31083
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2273317 2273315 2273316
Blocks: 2272001
TreeView+ depends on / blocked
 
Reported: 2024-03-28 04:27 UTC by TEJ RATHI
Modified: 2024-05-15 06:06 UTC (History)
1 user (show)

Fixed In Version: xorg-server 21.1.12, xwayland 23.2.5
Doc Type: If docs needed, set a value
Doc Text:
A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:1785 0 None None None 2024-04-11 16:50:21 UTC
Red Hat Product Errata RHSA-2024:2036 0 None None None 2024-04-24 15:32:05 UTC
Red Hat Product Errata RHSA-2024:2037 0 None None None 2024-04-24 15:28:56 UTC
Red Hat Product Errata RHSA-2024:2038 0 None None None 2024-04-24 15:45:17 UTC
Red Hat Product Errata RHSA-2024:2039 0 None None None 2024-04-24 15:39:49 UTC
Red Hat Product Errata RHSA-2024:2040 0 None None None 2024-04-24 15:44:44 UTC
Red Hat Product Errata RHSA-2024:2041 0 None None None 2024-04-24 15:33:40 UTC
Red Hat Product Errata RHSA-2024:2042 0 None None None 2024-04-24 15:42:03 UTC
Red Hat Product Errata RHSA-2024:2080 0 None None None 2024-04-29 02:46:58 UTC
Red Hat Product Errata RHSA-2024:2616 0 None None None 2024-04-30 16:41:30 UTC

Description TEJ RATHI 2024-03-28 04:27:05 UTC 
A vulnerability in xorg-server and xwayland. ProcRenderAddGlyphs() function calls the AllocateGlyph() function to store new glyphs sent by the client to the X server.  AllocateGlyph() would return a new glyph with refcount=0 and a re-used glyph would end up not changing the refcount at all. The resulting glyph_new array would thus have multiple entries pointing to the same non-refcounted glyphs.

ProcRenderAddGlyphs() may free a glyph, resulting in a use-after-free when the same glyph pointer is then later used.

Introduced in: prior to X11R6.7 (2004)
Comment 3 Sandipan Roy 2024-04-04 07:49:35 UTC 
Created tigervnc tracking bugs for this issue:

Affects: fedora-all [bug 2273317]


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

Affects: fedora-all [bug 2273315]


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

Affects: fedora-all [bug 2273316]
Comment 5 errata-xmlrpc 2024-04-11 16:50:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2024:1785 https://access.redhat.com/errata/RHSA-2024:1785
Comment 6 errata-xmlrpc 2024-04-24 15:28:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2037 https://access.redhat.com/errata/RHSA-2024:2037
Comment 7 errata-xmlrpc 2024-04-24 15:32:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:2036 https://access.redhat.com/errata/RHSA-2024:2036
Comment 8 errata-xmlrpc 2024-04-24 15:33:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support
  Red Hat Enterprise Linux 8.2 Telecommunications Update Service
  Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Via RHSA-2024:2041 https://access.redhat.com/errata/RHSA-2024:2041
Comment 9 errata-xmlrpc 2024-04-24 15:39:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:2039 https://access.redhat.com/errata/RHSA-2024:2039
Comment 10 errata-xmlrpc 2024-04-24 15:42:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Via RHSA-2024:2042 https://access.redhat.com/errata/RHSA-2024:2042
Comment 11 errata-xmlrpc 2024-04-24 15:44:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:2040 https://access.redhat.com/errata/RHSA-2024:2040
Comment 12 errata-xmlrpc 2024-04-24 15:45:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:2038 https://access.redhat.com/errata/RHSA-2024:2038
Comment 13 errata-xmlrpc 2024-04-29 02:46:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2024:2080 https://access.redhat.com/errata/RHSA-2024:2080
Comment 14 errata-xmlrpc 2024-04-30 16:41:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2616 https://access.redhat.com/errata/RHSA-2024:2616
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