SB2011012402 - Multiple vulnerabilities in git.kernel linux-pam

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Main Vulnerability Database SB2011012402

SB2011012402 - Multiple vulnerabilities in git.kernel linux-pam

Published: January 24, 2011 Updated: August 11, 2020

Security Bulletin ID SB2011012402
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2010-3435)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) before 1.1.2 use root privileges during read access to files and directories that belong to arbitrary user accounts, which might allow local users to obtain sensitive information by leveraging this filesystem activity, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory.


2) Input validation error (CVE-ID: CVE-2010-3316)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The run_coprocess function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) before 1.1.2 does not check the return values of the setuid, setgid, and setgroups system calls, which might allow local users to read arbitrary files by executing a program that relies on the pam_xauth PAM check.


Remediation

Install update from vendor's website.

References