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Debian Security Advisory DSA-5637-1                   security@debian.org
https://www.debian.org/security/                          Markus Koschany
March 08, 2024                        https://www.debian.org/security/faq
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Package        : squid
CVE ID         : CVE-2023-46724 CVE-2023-46846 CVE-2023-46847 CVE-2023-49285
                 CVE-2023-49286 CVE-2023-50269 CVE-2024-23638 CVE-2024-25617
                 CVE-2023-46848 CVE-2024-25111
Debian Bug     : 1055252 1054537 1055250 1055251 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 the oldstable distribution (bullseye), these problems have been fixed
in version 4.13-10+deb11u3.

For the stable distribution (bookworm), these problems have been fixed in
version 5.7-2+deb12u1.

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 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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