Description
wb2osz/direwolf (Dire Wolf) versions up to and including 1.8.1, prior to commit 694c954, contain a stack-based buffer overflow vulnerability in the function kiss_rec_byte() located in src/kiss_frame.c. When processing crafted KISS frames that reach the maximum allowed frame length (MAX_KISS_LEN), the function appends a terminating FEND byte without reserving sufficient space in the stack buffer. This results in an out-of-bounds write followed by an out-of-bounds read during the subsequent call to kiss_unwrap(), leading to stack memory corruption or application crashes. This vulnerability may allow remote unauthenticated attackers to trigger a denial-of-service condition.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
wb2osz Dire Wolf
Default version status: unaffected
0 to ≤ 1.8.1affected694c95485b21c1c22bc4682703771dec4d7a374bunaffected
pkg:github/wb2osz/direwolfReferences
- https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-010-direwolf-stack-buffer-overflow-kiss-frame.md ↗
- https://github.com/wb2osz/direwolf/issues/617 ↗
- https://github.com/wb2osz/direwolf/commit/694c954 ↗
- https://www.vulncheck.com/advisories/wb2osz-direwolf-stack-based-buffer-overflow-dos ↗