جزئیات آسیب‌پذیری

wb2osz/direwolf (Dire Wolf) versions up to and including 1.8.1, 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.

• https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md technical-descriptionexploit
• https://github.com/wb2osz/direwolf/issues/618 issue-tracking
• https://github.com/wb2osz/direwolf/commit/3658a87 patch
• https://www.vulncheck.com/advisories/wb2osz-direwolf-reachable-assertion-dos third-party-advisory