Home / mailings [SECURITY] [DSA 5088-1] varnish security update
Posted on 03 March 2022
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-5088-1 security@debian.org
https://www.debian.org/security/ Florian Weimer
March 03, 2022 https://www.debian.org/security/faq
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Package : varnish
CVE ID : CVE-2021-36740 CVE-2022-23959
Debian Bug : 991040 1004433
Brief introduction
CVE-2021-36740
Martin Blix Grydeland discovered that Varnish is vulnerable to
request smuggling attacks if the HTTP/2 protocol is enabled.
CVE-2022-23959
James Kettle discovered a request smuggling attack against the
HTTP/1 protocol implementation in Varnish.
For the oldstable distribution (buster), these problems have been fixed
in version 6.1.1-1+deb10u3.
For the stable distribution (bullseye), these problems have been fixed in
version 6.5.1-1+deb11u2.
We recommend that you upgrade your varnish packages.
For the detailed security status of varnish please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/varnish
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
