Description

The error-reporting functionality in (1) fs/ext2/dir.c, (2) fs/ext3/dir.c, and possibly (3) fs/ext4/dir.c in the Linux kernel 2.6.26.5 does not limit the number of printk console messages that report directory corruption, which allows physically proximate attackers to cause a denial of service (temporary system hang) by mounting a filesystem that has corrupted dir->i_size and dir->i_blocks values and performing (a) read or (b) write operations. NOTE: there are limited scenarios in which this crosses privilege boundaries.

References

http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00008.html

http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00000.html

http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00001.html

http://lkml.org/lkml/2008/9/13/98

http://lkml.org/lkml/2008/9/13/99

http://lkml.org/lkml/2008/9/17/371

http://rhn.redhat.com/errata/RHSA-2008-0972.html

http://secunia.com/advisories/32356

http://secunia.com/advisories/32370

http://secunia.com/advisories/32509

http://secunia.com/advisories/32709

http://secunia.com/advisories/32759

http://secunia.com/advisories/32799

http://secunia.com/advisories/32998

http://secunia.com/advisories/33180

http://secunia.com/advisories/33586

http://secunia.com/advisories/33758

http://secunia.com/advisories/37471

http://wiki.rpath.com/Advisories:rPSA-2008-0316

http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0316

http://www.debian.org/security/2008/dsa-1681

http://www.debian.org/security/2008/dsa-1687

http://www.mandriva.com/security/advisories?name=MDVSA-2008:224

http://www.openwall.com/lists/oss-security/2008/09/18/2

http://www.redhat.com/support/errata/RHSA-2009-0009.html

http://www.redhat.com/support/errata/RHSA-2009-0326.html

http://www.securityfocus.com/archive/1/498285/100/0/threaded

http://www.securityfocus.com/archive/1/507985/100/0/threaded

http://www.ubuntu.com/usn/usn-662-1

http://www.vmware.com/security/advisories/VMSA-2009-0016.html

http://www.vupen.com/english/advisories/2009/3316

https://bugzilla.redhat.com/show_bug.cgi?id=459577

https://exchange.xforce.ibmcloud.com/vulnerabilities/45720

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10852

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8642

Details

Risk Information

CVSS v2