smbfs in Samba 3.5.8 and earlier attempts to use (1) mount.cifs to
append to the /etc/mtab file and (2) umount.cifs to append to the
/etc/mtab.tmp file without first checking whether resource limits
would interfere, which allows local users to trigger corruption of the
/etc/mtab file via a process with a small RLIMIT_FSIZE value, a
related issue to CVE-2011-1089.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20110303 Re: Suid mount helpers fail to anticipate RLIMIT_FSIZE
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disclosed, or updated in CVE.
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