Description
Stack-based buffer overflow in the as_bad function in messages.c in the GNU as (gas) assembler in Free Software Foundation GNU Binutils before 20050721 allows attackers to execute arbitrary code via a .c file with crafted inline assembly code.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | binutils | 2.17-1 | — |
| Debian 13 | binutils | 2.17-1 | — |
| Debian 12 | binutils | 2.17-1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- GNU BinUtils 2.1x - GAS Buffer Overflow EDB-28397 · remote · Aug 17, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 27960 vdb-entry
- USN-336-1 vendor-advisory
- 21508 third-party-advisory
- http://bugs.gentoo.org/show_bug.cgi?id=99464
- 19555 vdb-entry
- ADV-2006-3307 vdb-entry
- 21530 third-party-advisory