Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.0549.2
xterm security update
22 March 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xterm
Publisher: Debian
Operating System: Debian GNU/Linux
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-27135
Original Bulletin:
https://www.debian.org/lts/security/2021/dla-2558
https://www.debian.org/lts/security/2021/dla-2558-2
Comment: This bulletin contains two (2) Debian security advisories.
This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running xterm check for an updated version of the software for their
operating system.
Revision History: March 22 2021: Regression Update
February 15 2021: Initial Release
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Debian LTS Advisory DLA-2558-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Utkarsh Gupta
February 14, 2021 https://wiki.debian.org/LTS
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Package : xterm
Version : 327-2+deb9u1
CVE ID : CVE-2021-27135
Debian Bug : 982439
xterm through Patch #365 allows remote attackers to cause a
denial of service (segmentation fault) or possibly have
unspecified other impact via a crafted UTF-8 character sequence.
For Debian 9 stretch, this problem has been fixed in version
327-2+deb9u1.
We recommend that you upgrade your xterm packages.
For the detailed security status of xterm please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/xterm
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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Debian LTS Advisory DLA-2558-2 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Utkarsh Gupta
March 21, 2021 https://wiki.debian.org/LTS
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Package : xterm
Version : 327-2+deb9u2
Debian Bug : 984615
DLA 2558-2 backported a part of the upstream patch which fails
to deal with the realloc failures in Debian stretch. This update
reverts that part of the patch since it's not really needed and
just focuses on fixing CVE-2021-27135.
For Debian 9 stretch, this problem has been fixed in version
327-2+deb9u2.
We recommend that you upgrade your xterm packages.
For the detailed security status of xterm please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/xterm
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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===========================================================================
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The University of Queensland
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