Unrated severityNVD Advisory· Published Sep 21, 2009· Updated Jun 16, 2026

CVE-2009-2939

Description

The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Postfix/Postfix
cpe:2.3:a:postfix:postfix:2.5.5:*:*:*:*:*:*:*
Debian/Postfixllm-create
Range: 2.5.5 on Debian GNU/Linux and Ubuntu
Ubuntu/Postfixllm-create
Range: 2.5.5 on Ubuntu (and Debian)

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2009/09/18/6nvdExploit
www.debian.org/security/2011/dsa-2233nvd

News mentions

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