Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.3357
apache2 security update
11 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: apache2
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-40438 CVE-2021-39275 CVE-2021-36160
CVE-2021-34798
Reference: ESB-2021.3341
ESB-2021.3279
ESB-2021.3239
Original Bulletin:
http://www.debian.org/security/2021/dsa-4982
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Debian Security Advisory DSA-4982-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
October 08, 2021 https://www.debian.org/security/faq
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Package : apache2
CVE ID : CVE-2021-34798 CVE-2021-36160 CVE-2021-39275 CVE-2021-40438
Several vulnerabilities have been found in the Apache HTTP server, which
could result in denial of service. In addition a vulnerability was
discovered in mod_proxy with which an attacker could trick the server
to forward requests to arbitrary origin servers.
For the oldstable distribution (buster), these problems have been fixed
in version 2.4.38-3+deb10u6.
For the stable distribution (bullseye), these problems have been fixed in
version 2.4.51-1~deb11u1.
We recommend that you upgrade your apache2 packages.
For the detailed security status of apache2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/apache2
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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