CVE-2010-3431

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Summary

CVECVE-2010-3431
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-01-24 18:00:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.

Risk And Classification

Primary CVSS: v2.0 1.9 from [email protected]

AV:L/AC:M/Au:N/C:P/I:N/A:N

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:L/AC:M/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linux-pam Linux-pam 1.1.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
641361 – (CVE-2010-3430, CVE-2010-3431) CVE-2010-3430 CVE-2010-3431 pam: pam_mail and pam_env incorrect privilege dropping af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Patch
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com
Security Advisory SA49711 - Gentoo update for pam - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
Gentoo Linux Documentation -- Linux-PAM: Multiple vulnerabilities af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Patch
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
git.altlinux.org - pam.git/commit af854a3a-2127-422b-91ae-364da2661108 git.altlinux.org
oss-security - Re: Minor security flaw with pam_xauth af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
git.altlinux.org - pam.git/commit MITRE git.altlinux.org
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