Bug 1862246 (CVE-2020-14346) - CVE-2020-14346 xorg-x11-server: Integer underflow in the X input extension protocol
Summary: CVE-2020-14346 xorg-x11-server: Integer underflow in the X input extension pr...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-14346
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: 1872392 1872393 1872394 1872395 1872396 1910715
Blocks: 1862265
TreeView+ depends on / blocked
 
Reported: 2020-07-30 20:01 UTC by Pedro Sampaio
Modified: 2022-10-02 21:50 UTC (History)
12 users (show)

Fixed In Version: xorg-x11-server 1.20.9
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in xorg-x11-server. A integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2020-11-04 20:21:19 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4910 0 None None None 2020-11-04 17:27:16 UTC
Red Hat Product Errata RHSA-2020:4953 0 None None None 2020-11-05 09:51:10 UTC

Description Pedro Sampaio 2020-07-30 20:01:31 UTC 
A flaw was found in xorg-x11-server. A integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents.
Comment 1 Adam Jackson 2020-07-30 20:43:22 UTC 
This bug does not yet have an embargo date set, though CVE-2020-14347 does.
Comment 2 Huzaifa S. Sidhpurwala 2020-07-31 04:30:59 UTC 
Acknowledgments:

Name: X.org project
Upstream: Jan-Niklas Sohn (Trend Micro Zero Day Initiative)
Comment 4 Huzaifa S. Sidhpurwala 2020-08-25 16:10:21 UTC 
Upstream commit: https://gitlab.freedesktop.org/xorg/xserver/-/commit/c940cc8b6c0a2983c1ec974f1b3f019795dd4cff
Comment 5 Huzaifa S. Sidhpurwala 2020-08-25 16:10:26 UTC 
External References:

https://lists.x.org/archives/xorg-announce/2020-August/003058.html
Comment 6 Huzaifa S. Sidhpurwala 2020-08-25 16:11:35 UTC 
Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 1872396]
Comment 8 Huzaifa S. Sidhpurwala 2020-08-26 08:56:55 UTC 
Statement:

Xorg server does not run with root  privileges in Red Hat Enterprise Linux 8, therefore this flaw has been rated as having moderate impact for Red Hat Enterprise linux 8.
Comment 12 errata-xmlrpc 2020-11-04 17:27:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4910 https://access.redhat.com/errata/RHSA-2020:4910
Comment 13 Product Security DevOps Team 2020-11-04 20:21:19 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-2020-14346
Comment 15 errata-xmlrpc 2020-11-05 09:51:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:4953 https://access.redhat.com/errata/RHSA-2020:4953
Comment 17 errata-xmlrpc 2021-05-18 15:11:36 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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