PRIOn knowledge basePRION:CVE-2011-4086Design/Logic Flaw
6.7 Medium
AI Score
Confidence
Low
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
5.4%
The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=15291164b22a357cb211b618adfef4fa82fc0de3
lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
rhn.redhat.com/errata/RHSA-2012-0571.html
rhn.redhat.com/errata/RHSA-2012-0670.html
secunia.com/advisories/48898
secunia.com/advisories/48964
www.debian.org/security/2012/dsa-2469
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.1
bugzilla.redhat.com/show_bug.cgi?id=749143
github.com/torvalds/linux/commit/15291164b22a357cb211b618adfef4fa82fc0de3
Related
6.7 Medium
AI Score
Confidence
Low
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
5.4%