Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.1316
xorg-server security update
20 April 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xorg-server
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3472
Reference: ESB-2021.1295
ESB-2021.1283
ESB-2021.1227
Original Bulletin:
http://www.debian.org/security/2021/dsa-4893
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
- - -------------------------------------------------------------------------
Debian Security Advisory DSA-4893-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
April 19, 2021 https://www.debian.org/security/faq
- - -------------------------------------------------------------------------
Package : xorg-server
CVE ID : CVE-2021-3472
Jan-Niklas Sohn discovered that missing input sanitising in the XInput
extension of the X.org X server may result in privilege escalation if
the X server is running privileged.
For the stable distribution (buster), this problem has been fixed in
version 2:1.20.4-1+deb10u3.
We recommend that you upgrade your xorg-server packages.
For the detailed security status of xorg-server please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/xorg-server
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
- -----BEGIN PGP SIGNATURE-----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=N0Mn
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQIVAwUBYH4xR+NLKJtyKPYoAQjcIRAAlXPgYTPtFhGGqs/KtTDrsaMFrVem3iYL
KW+8wmckzvDrrD8/Ehu//Zrt2wTinBj3i1TbFT+Kyu/BACIB3NfmESaNZ0rxkRES
JxED5JSbRTYDNiK59IrghBcS/1N07KqVlOvXdO5cz7mvfh78z+zuH0Y/tN/Xjkr5
+rF1+tdJ+h7B3G9EJB6JEGYnxNlniCgRsEHUUqhlErgW1M5NgepHqRah1Tfn8XE1
tuaWAPLT+AwPbRV9z6HAo4etBRVdDen+06fpWFu6MaVppEjkepinGtIn39GApKjE
0h1DKMUvcny/ecHWaXOqOaQ40UrCmuZadt62xqvNICiLNjcUJrAf86ewFER6B6Q0
o1rVeHLeWgb4LHlcE4OZWZnmj3wdMWmMWxw9CzD1Us52wJZGk1VTPJzXdqeUmAyE
AwyERD+L4C4HgddYmjrX0fatxGEhjYL8oEBWmLIq0u0HkeVK6LZtavScVo7vYm8N
xHIgsn/qEHH+t1V9RmvBDUDUcVO72AWNX3ZLlPHzVE6TyjFmiD+2TV8wAZs8/JAu
CWTj7+lu3Xye82H0/xqhOuBf2vrNshCBoiZjsxkGGKrlRhQX3OgcG66YbYTSLFXM
hAnGKrjxnMh9f2yB4yzOlKD8Tt5Vgj69n+GS48XJHMcZN0APtHvlgNQkjhPSHLw1
1IuIVFj24dI=
=UBNk
-----END PGP SIGNATURE-----