Solution
Please Install the Updated Packages.
Insight
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=490
The updated packages have been patched to correct these issues.
Affected
pam on Mandriva Linux 2009.0,
Mandriva Linux 2009.0/X86_64,
Mandriva Linux 2009.1,
Mandriva Linux 2009.1/X86_64,
Mandriva Linux 2010.0,
Mandriva Linux 2010.0/X86_64,
Mandriva Linux 2010.1,
Mandriva Linux 2010.1/X86_64,
Mandriva Enterprise Server 5,
Mandriva Enterprise Server 5/X86_64
Severity
Classification
-
CVE CVE-2010-3316, CVE-2010-3435, CVE-2010-3853 -
CVSS Base Score: 6.9
AV:L/AC:M/Au:N/C:C/I:C/A:C
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