CVE-2025-34458

Name	CVE-2025-34458
Description	wb2osz/direwolf (Dire Wolf) versions up to and including 1.8, prior to commit 3658a87, contain a reachable assertion vulnerability in the APRS MIC-E decoder function aprs_mic_e() located in src/decode_aprs.c. When processing a specially crafted AX.25 frame containing a MIC-E message with an empty or truncated comment field, the application triggers an unhandled assertion checking for a non-empty comment. This assertion failure causes immediate process termination, allowing a remote, unauthenticated attacker to cause a denial of service by sending malformed APRS traffic.
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)
Debian Bugs	1123925

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
direwolf (PTS)	bullseye	1.6+dfsg-1	vulnerable
	bookworm	1.6+dfsg-3	vulnerable
	trixie	1.7+dfsg-2	vulnerable
	forky, sid	1.8.1+dfsg-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
direwolf	source	(unstable)	(unfixed)	unimportant		1123925

Notes

https://github.com/wb2osz/direwolf/issues/618
Fixed by: https://github.com/wb2osz/direwolf/commit/3658a878920803bbb69a4567579dcc4d6cb80a92 (dev)
Crash in CLI tool, no security impact