CVE-2023-25824

Name	CVE-2023-25824
Description	Mod_gnutls is a TLS module for Apache HTTPD based on GnuTLS. Versions from 0.9.0 to 0.12.0 (including) did not properly fail blocking read operations on TLS connections when the transport hit timeouts. Instead it entered an endless loop retrying the read operation, consuming CPU resources. This could be exploited for denial of service attacks. If trace level logging was enabled, it would also produce an excessive amount of log output during the loop, consuming disk space. The problem has been fixed in commit d7eec4e598158ab6a98bf505354e84352f9715ec, please update to version 0.12.1. There are no workarounds, users who cannot update should apply the errno fix detailed in the security advisory.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	942737

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mod-gnutls (PTS)	buster	0.9.0-1.1~deb10u1	vulnerable
	sid	0.9.0-1.1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
mod-gnutls	source	(unstable)	(unfixed)			942737

Notes

[buster] - mod-gnutls <postponed> (Minor issue, DoS)
https://github.com/airtower-luna/mod_gnutls/security/advisories/GHSA-6cfv-fvgm-7pc8
https://github.com/airtower-luna/mod_gnutls/commit/d7eec4e598158ab6a98bf505354e84352f9715ec (mod_gnutls/0.12.1)