Mandriva Linux Security Advisory : pam (MDVSA-2010:220)

medium Nessus Plugin ID 50472

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Synopsis

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

Description

Multiple vulnerabilities were discovered and corrected in pam :

The pam_xauth module did not verify the return values of the setuid() and setgid() system calls. A local, unprivileged user could use this flaw to execute the xauth command with root privileges and make it read an arbitrary input file (CVE-2010-3316).

The pam_mail module used root privileges while accessing users' files.
In certain configurations, a local, unprivileged user could use this flaw to obtain limited information about files or directories that they do not have access to (CVE-2010-3435).

The pam_namespace module executed the external script namespace.init with an unchanged environment inherited from an application calling PAM. In cases where such an environment was untrusted (for example, when pam_namespace was configured for setuid applications such as su or sudo), a local, unprivileged user could possibly use this flaw to escalate their privileges (CVE-2010-3853).

Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=4 90

The updated packages have been patched to correct these issues.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 50472

File Name: mandriva_MDVSA-2010-220.nasl

Version: 1.14

Type: local

Published: 11/4/2010

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 6

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

Temporal Vector: E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:lib64pam-devel, p-cpe:/a:mandriva:linux:lib64pam0, p-cpe:/a:mandriva:linux:libpam-devel, p-cpe:/a:mandriva:linux:libpam0, p-cpe:/a:mandriva:linux:pam, p-cpe:/a:mandriva:linux:pam-doc, cpe:/o:mandriva:linux:2009.0, cpe:/o:mandriva:linux:2009.1, cpe:/o:mandriva:linux:2010.0, cpe:/o:mandriva:linux:2010.1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/4/2010

Reference Information

CVE: CVE-2010-3316, CVE-2010-3435, CVE-2010-3853

BID: 42472, 43487, 44590

MDVSA: 2010:220