Scientific Linux Security Update : pam on SL6.x i386/x86_64 (20130221)

medium Nessus Plugin ID 64955
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

A stack-based buffer overflow flaw was found in the way the pam_env module parsed users' '~/.pam_environment' files. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to crash the application or, possibly, escalate their privileges. (CVE-2011-3148)

A denial of service flaw was found in the way the pam_env module expanded certain environment variables. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to cause the application to enter an infinite loop. (CVE-2011-3149)

Solution

Update the affected pam, pam-debuginfo and / or pam-devel packages.

See Also

http://www.nessus.org/u?16ca78d7

Plugin Details

Severity: Medium

ID: 64955

File Name: sl_20130221_pam_on_SL6_x.nasl

Version: 1.5

Type: local

Agent: unix

Published: 3/1/2013

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

CVSS v2

Risk Factor: Medium

Base Score: 4.6

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

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:pam, p-cpe:/a:fermilab:scientific_linux:pam-debuginfo, p-cpe:/a:fermilab:scientific_linux:pam-devel, x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2/21/2013

Vulnerability Publication Date: 7/22/2012

Reference Information

CVE: CVE-2011-3148, CVE-2011-3149