Bug 1872473 (CVE-2020-14363) - CVE-2020-14363 libX11: integer overflow leads to double free in locale handling
Summary: CVE-2020-14363 libX11: integer overflow leads to double free in locale handling
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-14363
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:
: 1872572 (view as bug list)
Depends On: 1872474 1873920 1873921 1873922 1873923 1918159
Blocks: 1862265
TreeView+ depends on / blocked
 
Reported: 2020-08-25 20:54 UTC by Guilherme de Almeida Suckevicz
Modified: 2024-12-20 19:13 UTC (History)
13 users (show)

Fixed In Version: libX11 1.6.12
Clone Of:
Environment:
Last Closed: 2020-11-04 20:21:29 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:4955 0 None None None 2020-11-05 12:08:28 UTC
Red Hat Product Errata RHBA-2020:4956 0 None None None 2020-11-05 14:02:12 UTC
Red Hat Product Errata RHBA-2020:4958 0 None None None 2020-11-05 14:29:11 UTC
Red Hat Product Errata RHBA-2020:4966 0 None None None 2020-11-05 20:59:04 UTC
Red Hat Product Errata RHBA-2020:4970 0 None None None 2020-11-09 01:01:17 UTC
Red Hat Product Errata RHBA-2020:4982 0 None None None 2020-11-09 14:35:47 UTC
Red Hat Product Errata RHBA-2020:5155 0 None None None 2020-11-18 21:14:14 UTC
Red Hat Product Errata RHBA-2020:5169 0 None None None 2020-11-23 12:06:47 UTC
Red Hat Product Errata RHBA-2020:5211 0 None None None 2020-11-24 12:32:24 UTC
Red Hat Product Errata RHBA-2020:5336 0 None None None 2020-12-03 15:13:39 UTC
Red Hat Product Errata RHSA-2020:4908 0 None None None 2020-11-04 14:07:56 UTC
Red Hat Product Errata RHSA-2020:4946 0 None None None 2020-11-05 09:42:02 UTC

Description Guilherme de Almeida Suckevicz 2020-08-25 20:54:47 UTC 
There is an integer overflow and a double free vulnerability in the way LibX11 handles locales. The integer overflow is a necessary precursor to the double free.
Comment 1 Guilherme de Almeida Suckevicz 2020-08-25 20:55:06 UTC 
Created libX11 tracking bugs for this issue:

Affects: fedora-all [bug 1872474]
Comment 2 Tomas Hoger 2020-08-26 07:30:07 UTC 
Upstream advisory:

https://lists.x.org/archives/xorg-announce/2020-August/003056.html

Upstream patch:

https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/acdaaadcb3d85c61fd43669fc5dddf0f8c3f911d
Comment 3 Doran Moppert 2020-08-27 00:46:11 UTC 
*** Bug 1872572 has been marked as a duplicate of this bug. ***
Comment 4 Huzaifa S. Sidhpurwala 2020-08-31 03:27:22 UTC 
External References:

https://lists.x.org/archives/xorg-announce/2020-August/003056.html
Comment 7 RaTasha Tillery-Smith 2020-09-01 14:32:47 UTC 
Statement:

Xorg server does not run with root privileges in Red Hat Enterprise Linux 8. Therefore this flaw has been rated as having a moderate impact for Red Hat Enterprise Linux 8.
Comment 16 errata-xmlrpc 2020-11-04 14:08:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4908 https://access.redhat.com/errata/RHSA-2020:4908
Comment 17 Product Security DevOps Team 2020-11-04 20:21:29 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-2020-14363
Comment 20 errata-xmlrpc 2020-11-05 09:42:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:4946 https://access.redhat.com/errata/RHSA-2020:4946
Comment 26 errata-xmlrpc 2021-05-18 15:12:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:1804 https://access.redhat.com/errata/RHSA-2021:1804
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