CVE-2024-0553

Name	CVE-2024-0553
Description	A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3740-1
Debian Bugs	1061046

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gnutls28 (PTS)	bookworm, bookworm (security)	3.7.9-2+deb12u7	fixed
	trixie (security), trixie	3.8.9-3+deb13u4	fixed
	forky, sid	3.8.13-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
gnutls28	source	buster	3.6.7-4+deb10u12	DLA-3740-1
gnutls28	source	bullseye	3.7.1-5+deb11u5
gnutls28	source	bookworm	3.7.9-2+deb12u2
gnutls28	source	(unstable)	3.8.3-1		1061046

Notes

https://gitlab.com/gnutls/gnutls/-/issues/1522
https://gnutls.org/security-new.html#GNUTLS-SA-2024-01-14
https://gitlab.com/gnutls/gnutls/-/commit/40dbbd8de499668590e8af51a15799fbc430595e (3.8.3)
https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
Issue exists because of incomplete fix for CVE-2023-5981