| Description: | Description:
The remote host is missing an update to libpam-modules
announced via advisory USN-1140-1.
Details:
Marcus Granado discovered that PAM incorrectly handled configuration files
with non-ASCII usernames. A remote attacker could use this flaw to cause a
denial of service, or possibly obtain login access with a different users
username. This issue only affected Ubuntu 8.04 LTS. (CVE-2009-0887)
It was discovered that the PAM pam_xauth, pam_env and pam_mail modules
incorrectly handled dropping privileges when performing operations. A local
attacker could use this flaw to read certain arbitrary files, and access
other sensitive information. (CVE-2010-3316, CVE-2010-3430, CVE-2010-3431,
CVE-2010-3435)
It was discovered that the PAM pam_namespace module incorrectly cleaned the
environment during execution of the namespace.init script. A local attacker
could use this flaw to possibly gain privileges. (CVE-2010-3853)
It was discovered that the PAM pam_xauth module incorrectly handled certain
failures. A local attacker could use this flaw to delete certain unintended
files. (CVE-2010-4706)
It was discovered that the PAM pam_xauth module incorrectly verified
certain file properties. A local attacker could use this flaw to cause a
denial of service. (CVE-2010-4707)
Solution:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.04:
libpam-modules 1.1.2-2ubuntu8.2
Ubuntu 10.10:
libpam-modules 1.1.1-4ubuntu2.2
Ubuntu 10.04 LTS:
libpam-modules 1.1.1-2ubuntu5.2
Ubuntu 8.04 LTS:
libpam-modules 0.99.7.1-5ubuntu6.3
http://www.securityspace.com/smysecure/catid.html?in=USN-1140-1
CVSS Score:
6.9
CVSS Vector:
AV:L/AC:H/Au:NR/C:C/I:C/A:C
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