[SECURITY] [DLA 3709-1] squid security update

Debian LTS Advisory DLA-3709-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
January 09, 2024 https://wiki.debian.org/LTS

Package : squid
Version : 4.6-1+deb10u9
CVE ID : CVE-2023-46846 CVE-2023-46847 CVE-2023-49285 CVE-2023-49286
CVE-2023-50269
Debian Bug : 1054537 1055250 1058721

Several security vulnerabilities have been discovered in Squid, a full
featured web proxy cache. Due to programming errors in Squid's HTTP request
parsing, remote attackers may be able to execute a denial of service attack
by sending large X-Forwarded-For header or trigger a stack buffer overflow
while performing HTTP Digest authentication. Other issues facilitate
request smuggling past a firewall or a denial of service against Squid's
Helper process management.

In regard to CVE-2023-46728: Please note that support for the Gopher protocol
has simply been removed in future Squid versions. There are no plans by the
upstream developers of Squid to fix this issue. We recommend to reject all
Gopher URL requests instead.

For Debian 10 buster, these problems have been fixed in version
4.6-1+deb10u9.

We recommend that you upgrade your squid packages.

For the detailed security status of squid please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/squid

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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