Description
PostgreSQL 8.4.x before 8.4.11, 9.0.x before 9.0.7, and 9.1.x before 9.1.3 truncates the common name to only 32 characters when verifying SSL certificates, which allows remote attackers to spoof connections when the host name is exactly 32 characters.
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 6.0 | postgresql-8.4 | 8.4.11-0squeeze1 | DSA-2418-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | postgresql +9 | 8.4.11-1.el6_2 | RHSA-2012:0678 |
| RHEL 5 | postgresql84 +11 | 8.4.11-1.el5_8 | RHSA-2012:0678 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | postgresql93 | 9.3.15-1.1 | openSUSE-SU-2024:10256-1 |
| openSUSE Tumbleweed | postgresql94 | 9.4.10-1.1 | openSUSE-SU-2024:10030-1 |
| openSUSE Tumbleweed | postgresql95 | 9.5.4-1.2 | openSUSE-SU-2024:10273-1 |
Advisories 5
- RHSA-2012:0678 Red Hat Security Advisory: postgresql and postgresql84 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2418-1 postgresql-8.4 - several Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10030-1 postgresql94-9.4.10-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10273-1 libecpg6-32bit-9.5.4-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10256-1 postgresql93-9.3.15-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- http://www.postgresql.org/about/news/1377/
- 49273 third-party-advisory
- RHSA-2012:0678 vendor-advisory
- MDVSA-2012:026 vendor-advisory
- http://www.postgresql.org/docs/9.0/static/release-9-0-7.html
- http://www.postgresql.org/docs/8.4/static/release-8-4-11.html
- DSA-2418 vendor-advisory
- http://www.postgresql.org/docs/9.1/static/release-9-1-3.html
- openSUSE-SU-2012:1173 vendor-advisory