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CVE-2011-1678

Publication date 9 April 2011

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
cifs-utils 11.04 natty
Fixed 2:4.5-2ubuntu0.11.04.1
10.10 maverick
Fixed 2:4.5-2ubuntu0.10.10.1
10.04 LTS lucid Not in release
9.10 karmic Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
samba 11.04 natty
Not affected
10.10 maverick
Not affected
10.04 LTS lucid
Fixed 2:3.4.7~dfsg-1ubuntu3.8
9.10 karmic Ignored
8.04 LTS hardy
Fixed 3.0.28a-1ubuntu4.16
6.06 LTS dapper Ignored

Notes

mdeslaur

we ship this suid by default, so this is medium hardy needs to get mtab lock file support backported http://git.samba.org/?p=samba.git;a=commit;h=32695912dd3ed7c02da68209328d630c89d395ba

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
cifs-utils
samba

References

Related Ubuntu Security Notices (USN)

    • USN-1226-2
    • cifs-utils vulnerabilities
    • 4 October 2011

Other references