Bug 1862246 (CVE-2020-14346)

Summary: CVE-2020-14346 xorg-x11-server: Integer underflow in the X input extension protocol
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: ajax, bskeggs, caillon+fedoraproject, jglisse, john.j5live, mvanderw, ofourdan, rhughes, rstrode, sandmann, security-response-team, xgl-maint
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
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.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-11-04 20:21:19 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1872392, 1872393, 1872394, 1872395, 1872396, 1910715    
Bug Blocks: 1862265    

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 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