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Fencer Vulns
critical 10.0

CVE-2005-3656 json

Multiple format string vulnerabilities in logging functions in mod_auth_pgsql before 2.0.3, when used for user authentication against a Pos…

published 2005-12-31 20 y ago modified 2026-06-16 4 mo ago also EUVD-2005-3653

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.9%
EPSS 8.9% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

Multiple format string vulnerabilities in logging functions in mod_auth_pgsql before 2.0.3, when used for user authentication against a PostgreSQL database, allows remote unauthenticated attackers to execute arbitrary code, as demonstrated via the username.

Patch / fix

  • mod_auth_pgsql RHEL 3 2.0.1-4.ent.1
  • mod_auth_pgsql RHEL 4 2.0.1-7.1

red hat advisories RHSA-2006:0164

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2005-3656 updated

security flaw

  • Red Hat Desktop version 3 mod_auth_pgsql 2.0.1-4.ent.1 Red Hat Enterprise Linux AS version 3 mod_auth_pgsql 2.0.1-4.ent.1 Red Hat Enterprise Linux AS version 4 mod_auth_pgsql 2.0.1-7.1 Red Hat Enterprise Linux Desktop version 4 mod_auth_pgsql 2.0.1-7.1 Red Hat Enterprise Linux ES version 3 mod_auth_pgsql 2.0.1-4.ent.1 Red Hat Enterprise Linux ES version 4 mod_auth_pgsql 2.0.1-7.1
    +2 more products
    Red Hat Enterprise Linux WS version 3 mod_auth_pgsql 2.0.1-4.ent.1 Red Hat Enterprise Linux WS version 4 mod_auth_pgsql 2.0.1-7.1
    fixed: vendor fix RHSA-2006:0164

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

8.90% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-134 Use of Externally-Controlled Format String

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.