Technical Description

A vulnerability has been identified in Mandriva, which could be exploited by local attackers to bypass security restrictions. This issue is caused by an error in pam_mount when handling temporary files via the "passwdehd" script, which could allow malicious users to conduct symlink attacks and overwrite arbitrary files with the privileges of the user invoking the vulnerable application.

Affected Products

Mandriva Linux 2008.0
Mandriva Linux 2008.1
Mandriva Linux 2009.0
Mandriva Corporate 4.0

Solution

Upgrade the affected packages :

Mandriva Linux 2008.0:
d550c87096d1aa30ba502066de99ee7e 2008.0/i586/pam_mount-0.17-1.3mdv2008.0.i586.rpm
68494b5087e4db72d5220bf88dd50ef8 2008.0/i586/pam_mount-devel-0.17-1.3mdv2008.0.i586.rpm
1b8fc3341d368f35b2c4c68a40fa931a 2008.0/SRPMS/pam_mount-0.17-1.3mdv2008.0.src.rpm

Mandriva Linux 2008.0/X86_64:
d2932e71d030d7d1c9ac28f89230b4dd 2008.0/x86_64/pam_mount-0.17-1.3mdv2008.0.x86_64.rpm
3f6b089d0de2e4ed4a1079bc96606d2b 2008.0/x86_64/pam_mount-devel-0.17-1.3mdv2008.0.x86_64.rpm
1b8fc3341d368f35b2c4c68a40fa931a 2008.0/SRPMS/pam_mount-0.17-1.3mdv2008.0.src.rpm

Mandriva Linux 2008.1:
2d6291e9ae03d1af8373e76396ab77b2 2008.1/i586/pam_mount-0.33-2.5mdv2008.1.i586.rpm
b448a0849a4b0a9ba81452321da671dd 2008.1/SRPMS/pam_mount-0.33-2.5mdv2008.1.src.rpm

Mandriva Linux 2008.1/X86_64:
b55f9915b16de205ce876f1f522ee422 2008.1/x86_64/pam_mount-0.33-2.5mdv2008.1.x86_64.rpm
b448a0849a4b0a9ba81452321da671dd 2008.1/SRPMS/pam_mount-0.33-2.5mdv2008.1.src.rpm

Mandriva Linux 2009.0:
bc4fe7e82c04906e8b55c6f4ae605a7d 2009.0/i586/pam_mount-0.48-1.2mdv2009.0.i586.rpm
042e57a4312295e0386f5dd701801015 2009.0/SRPMS/pam_mount-0.48-1.2mdv2009.0.src.rpm

Mandriva Linux 2009.0/X86_64:
0be0da9f4ed2c14548372a468f125d2f 2009.0/x86_64/pam_mount-0.48-1.2mdv2009.0.x86_64.rpm
042e57a4312295e0386f5dd701801015 2009.0/SRPMS/pam_mount-0.48-1.2mdv2009.0.src.rpm

Corporate 4.0:
441b6914509f1c825b4718d4a7519994 corporate/4.0/i586/pam_mount-0.10.0-5.3.20060mlcs4.i586.rpm
a20956acc5fc8f58f57fc02edc55a103 corporate/4.0/i586/pam_mount-devel-0.10.0-5.3.20060mlcs4.i586.rpm
39f22f9fd569aea4a5066f7fb89e4014 corporate/4.0/SRPMS/pam_mount-0.10.0-5.3.20060mlcs4.src.rpm

Corporate 4.0/X86_64:
8570403f2404c0b00762b8143ddc2a19 corporate/4.0/x86_64/pam_mount-0.10.0-5.3.20060mlcs4.x86_64.rpm
cb96ac8a4f097c23e1cc3bb8be01bc74 corporate/4.0/x86_64/pam_mount-devel-0.10.0-5.3.20060mlcs4.x86_64.rpm
39f22f9fd569aea4a5066f7fb89e4014 corporate/4.0/SRPMS/pam_mount-0.10.0-5.3.20060mlcs4.src.rpm

References

http://www.vupen.com/english/advisories/2009/0078
http://lists.mandriva.com/security-announce/2009-01/msg00012.php

ChangeLog

2009-01-12 : Initial release

Vulnerability Management

Subscribe to VUPEN VNS and receive real-time e-mail and SMS alerts when new advisories or patches relevant to your systems and network configurations are available.

Feedback

If you have additional information or corrections for this security advisory please submit them via our contact form.