CVE-2023-46724

Squid is a caching proxy for the Web. Due to an Improper Validation of
Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to
6.4 compiled using --with-openssl are vulnerable to a Denial of Service
attack against SSL Certificate validation. This problem allows a remote
server to perform Denial of Service against Squid Proxy by initiating a TLS
Handshake with a specially crafted SSL Certificate in a server certificate
chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in
Squid version 6.4. In addition, patches addressing this problem for the
stable releases can be found in Squid’s patch archives. Those who you use a
prepackaged version of Squid should refer to the package vendor for
availability information on updated packages.

Bugs

• <https://bugs.launchpad.net/ubuntu/+source/squid/+bug/2041837&gt;

Notes