wb2osz/direwolf <= 1.8.1 Stack-based Buffer Overflow DoS
Summary
wb2osz/direwolf <= 1.8.1 Stack-based Buffer Overflow DoS
Original description
The description as published by the source.
wb2osz/direwolf (Dire Wolf) versions up to and including 1.8, 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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-34457 direwolf
- Ubuntu UBUNTU-CVE-2025-34457 direwolf
References
- advisory github.com
- advisory nvd.nist.gov
- advisory vulncheck.com
- package github.com
- patch github.com
- report github.com
- report github.com