Protect yourself against future threats.
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.2438
systemd security update
21 July 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: systemd
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-33910
Reference: ESB-2021.2437
Original Bulletin:
https://www.debian.org/lts/security/2021/dla-2715
https://www.debian.org/security/2021/dsa-4942
Comment: This bulletin contains two (2) Debian security advisories.
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Debian LTS Advisory DLA-2715-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Salvatore Bonaccorso
July 20, 2021 https://wiki.debian.org/LTS
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Package : systemd
Version : 232-25+deb9u13
CVE ID : CVE-2021-33910
The Qualys Research Labs discovered that an attacker-controlled
allocation using the alloca() function could result in memory
corruption, allowing to crash systemd and hence the entire operating
system.
Details can be found in the Qualys advisory at
https://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt
For Debian 9 stretch, this problem has been fixed in version
232-25+deb9u13.
We recommend that you upgrade your systemd packages.
For the detailed security status of systemd please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/systemd
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 Security Advisory DSA-4942-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
July 20, 2021 https://www.debian.org/security/faq
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Package : systemd
CVE ID : CVE-2021-33910
The Qualys Research Labs discovered that an attacker-controlled
allocation using the alloca() function could result in memory
corruption, allowing to crash systemd and hence the entire operating
system.
Details can be found in the Qualys advisory at
https://www.qualys.com/2021/07/20/cve-2021-33910/denial-of-service-systemd.txt
For the stable distribution (buster), this problem has been fixed in
version 241-7~deb10u8.
We recommend that you upgrade your systemd packages.
For the detailed security status of systemd please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/systemd
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
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===========================================================================
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