The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a negative dentry and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.31 (including) | 2.6.31 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-164.6.1.el5 | * |
| Linux | Ubuntu | hardy | * |
| Linux | Ubuntu | intrepid | * |
| Linux | Ubuntu | jaunty | * |
| Linux | Ubuntu | upstream | * |
| Linux-source-2.6.15 | Ubuntu | upstream | * |
References
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git%3Ba=commit%3Bh=afc2b6932f48f200736d3e36ad66fee0ec733136
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://secunia.com/advisories/37075
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://www.openwall.com/lists/oss-security/2009/10/06/1
- http://www.securityfocus.com/bid/36639
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vupen.com/english/advisories/2010/0528
- https://bugs.launchpad.net/ecryptfs/+bug/387073
- https://bugzilla.redhat.com/show_bug.cgi?id=527534
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53693
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10216
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6992
- https://rhn.redhat.com/errata/RHSA-2009-1548.html
- https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git%3Ba=commit%3Bh=afc2b6932f48f200736d3e36ad66fee0ec733136
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://secunia.com/advisories/37075
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://www.openwall.com/lists/oss-security/2009/10/06/1
- http://www.securityfocus.com/bid/36639
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vupen.com/english/advisories/2010/0528
- https://bugs.launchpad.net/ecryptfs/+bug/387073
- https://bugzilla.redhat.com/show_bug.cgi?id=527534
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53693
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10216
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6992
- https://rhn.redhat.com/errata/RHSA-2009-1548.html
- https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html