CVE-2010-3430

Severity: medium (CVSS 4.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-01-24 · updated 2026-06-16

Description

The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not perform the required setfsgid and setgroups system calls, which might allow local users to obtain sensitive information by leveraging unintended group permissions, 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.

Affected products

Linux-PAM: 1.1.2

References

http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=843807a3a90f52e7538be756616510730a24739a
http://openwall.com/lists/oss-security/2010/09/21/10
http://openwall.com/lists/oss-security/2010/09/21/3
http://openwall.com/lists/oss-security/2010/09/21/8
http://openwall.com/lists/oss-security/2010/09/21/9
http://openwall.com/lists/oss-security/2010/09/27/10
http://openwall.com/lists/oss-security/2010/09/27/4
http://openwall.com/lists/oss-security/2010/09/27/5
http://openwall.com/lists/oss-security/2010/09/27/7
http://openwall.com/lists/oss-security/2010/10/03/1
http://openwall.com/lists/oss-security/2010/10/25/2
http://secunia.com/advisories/49711

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