CVE-2010-4777
Description
The Perl_reg_numbered_buff_fetch function in Perl 5.10.0, 5.12.0, 5.14.0, and other versions, when running with debugging enabled, allows context-dependent attackers to cause a denial of service (assertion failure and application exit) via crafted input that is not properly handled when using certain regular expressions, as demonstrated by causing SpamAssassin and OCSInventory to crash.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ 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
Perl 5.x - 'Perl_reg_numbered_buff_fetch()' Remote Denial of Service
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 5.20.1-1 |
| sid | Fixed | 5.20.1-1 |
| forky | Fixed | 5.20.1-1 |
| bullseye | Fixed | 5.20.1-1 |
| bookworm | Fixed | 5.20.1-1 |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628836
- http://forums.ocsinventory-ng.org/viewtopic.php?id=7215
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2011-05/msg00025.html
- https://bugzilla.redhat.com/show_bug.cgi?id=694166
- https://listi.jpberlin.de/pipermail/postfixbuch-users/2011-February/055885.html
- https://rt.perl.org/Public/Bug/Display.html?id=76538
- https://security-tracker.debian.org/tracker/CVE-2010-4777
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.