CVE-2025-29917

Name	CVE-2025-29917
Description	Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
suricata (PTS)	bullseye	1:6.0.1-3	vulnerable
	bullseye (security)	1:6.0.1-3+deb11u1	vulnerable
	bookworm	1:6.0.10-1	vulnerable
	sid, trixie	1:7.0.10-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
suricata	source	(unstable)	1:7.0.9-1

Notes

[bookworm] - suricata <no-dsa> (Minor issue)
Fixed by: https://github.com/OISF/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0 (master)
Fixed by: https://github.com/OISF/suricata/commit/bab716776ba3561cfbfd1a57fc18ff1f6859f019 (suricata-7.0.9)