Description
Integer overflow in parse_comment in GnuPG (gpg) 1.4.4 allows remote attackers to cause a denial of service (segmentation fault) via a crafted message.
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 | gnupg2 | 1.9.20-2 | — |
| Debian 13 | gnupg2 | 1.9.20-2 | — |
| Debian 12 | gnupg2 | 1.9.20-2 | — |
| Debian 3.1 | gnupg | 1.4.1-1.sarge5 | DSA-1140-1 |
| Debian 3.1 | gnupg2 | 1.9.15-6sarge2 | DSA-1141-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | gnupg | 1.2.6-6 | RHSA-2006:0615 |
| RHEL 3 | gnupg | 1.2.1-17 | RHSA-2006:0615 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gpg2 | 2.2.27-2.4 | openSUSE-SU-2024:10815-1 |
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
- GnuPG 1.4/1.9 - Parse_Comment Remote Buffer Overflow EDB-28257 · dos · Jul 22, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 4
- RHSA-2006:0615 Red Hat Security Advisory: gnupg security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1141-1 gnupg2 - integer overflow Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1140-1 gnupg - integer overflow Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10815-1 dirmngr-2.2.27-2.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 21329 third-party-advisory
- RHSA-2006:0615 vendor-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi/gnupg.CVE-2006-3746.diff?bug=381204%3Bmsg=15%3Batt=1
- 21297 third-party-advisory
- ADV-2006-3123 vdb-entry
- SUSE-SR:2006:020 vendor-advisory
- oval:org.mitre.oval:def:11347 vdb-entry signature
- 21300 third-party-advisory
- 21326 third-party-advisory
- http://issues.rpath.com/browse/RPL-560
- 21598 third-party-advisory
- gnupg-parsecomment-bo(28220) vdb-entry
- 21467 third-party-advisory
- DSA-1140 vendor-advisory
- 19110 vdb-entry
- 21351 third-party-advisory
- 21522 third-party-advisory
- 21333 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2006-164.htm
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200502
- [Gnupg-devel] 20060725 Re: [Dailydave] GnuPG 1.4.4 fun mailing-list
- MDKSA-2006:141 vendor-advisory
- [Dailydave] 20060721 GnuPG 1.4.4 fun mailing-list
- USN-332-1 vendor-advisory
- 21378 third-party-advisory
- 1016622 vdb-entry
- 27664 vdb-entry
- 21346 third-party-advisory
- 20060808 ERRATA: [ GLSA 200608-08 ] GnuPG: Integer overflow vulnerability mailing-list
- GLSA-200608-08 vendor-advisory
- DSA-1141 vendor-advisory
- 20060802 rPSA-2006-0143-1 gnupg mailing-list
- 21306 third-party-advisory
- 21524 third-party-advisory
- 2006-0044 vendor-advisory