CVE-2009-3231: canonical ubuntu_linux Improper Authentication
Vulnerability summary
CVE-2009-3231 is a medium (CVSS 6.8) Improper Authentication vulnerability in canonical ubuntu_linux. EPSS estimates a 7.57% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities.
Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 17-09-2009PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The core server component in PostgreSQL 8.3 before 8.3.8 and 8.2 before 8.2.14, when using LDAP authentication with anonymous binds, allows remote attackers to bypass authentication via an empty password.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
7.57%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
No change 0.00 pp
From 7.57% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Suse2 products
- linux_enterprise10.0:sp2 | 11.0
- linux_enterprise_server9
Canonical1 product
- ubuntu_linuxEOL6.06 | 8.04 | 8.10 | 9.04
Fedoraproject1 product
- fedoraEOL10 | 11
Opensuse1 product
- opensuse≥ 10.3, ≤ 11.1
Postgresql1 product
- postgresql≥ 8.2, < 8.2.14 | ≥ 8.3, < 8.3.8
5 vendors · 6 products
References
17 links- www.redhat.com/archives/fedora-package-announce/2009-September/msg00307.htmlVendor AdvisoryX Refsource FEDORAMailing List
- www.securityfocus.com/archive/1/509917/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
Show all 17 references
- www.redhat.com/archives/fedora-package-announce/2009-September/msg00305.htmlVendor AdvisoryX Refsource FEDORAMailing List
- lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.htmlVendor AdvisoryX Refsource SUSEMailing List
- lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.htmlVendor AdvisoryX Refsource SUSEMailing List