CVE-2009-1072

Impact

nfsd in the Linux kernel before 2.6.28.9 does not drop the CAP_MKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the root_squash option.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=76a67ec6fb79ff3570dcb5342142c16098299911
• http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
• http://secunia.com/advisories/34422
• http://secunia.com/advisories/34432
• http://secunia.com/advisories/34786
• http://secunia.com/advisories/35121
• http://secunia.com/advisories/35185
• http://secunia.com/advisories/35343
• http://secunia.com/advisories/35390
• http://secunia.com/advisories/35394
• http://secunia.com/advisories/35656
• http://secunia.com/advisories/37471
• http://thread.gmane.org/gmane.linux.kernel/805280
• http://www.debian.org/security/2009/dsa-1800
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9
• http://www.openwall.com/lists/oss-security/2009/03/23/1
• http://www.redhat.com/support/errata/RHSA-2009-1081.html
• http://www.securityfocus.com/archive/1/507985/100/0/threaded
• http://www.securityfocus.com/bid/34205
• http://www.ubuntu.com/usn/usn-793-1
• http://www.vmware.com/security/advisories/VMSA-2009-0016.html
• http://www.vupen.com/english/advisories/2009/0802