CVE-2011-1749 Information

Description

The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value a related issue to CVE-2011-1089.

Reference

http://rhn.redhat.com/errata/RHSA-2011-1534.html http://rhn.redhat.com/errata/RHSA-2012-0310.html http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download http://www.openwall.com/lists/oss-security/2011/04/25/5 https://bugzilla.redhat.com/show_bug.cgi?id=697975