PRIOn knowledge basePRION:CVE-2013-0914Information disclosure
6.5 Medium
AI Score
Confidence
Low
3.6 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
0.0004 Low
EPSS
Percentile
8.3%
The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux_kernel | eq | 3.8.2 | |
| linux_kernel | eq | 3.8.0 | |
| linux_kernel | le | 3.8.3 | |
| linux_kernel | eq | 3.8.1 |
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2ca39528c01a933f6689cd6505ce65bd6d68a530
lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
rhn.redhat.com/errata/RHSA-2013-1051.html
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
www.mandriva.com/security/advisories?name=MDVSA-2013:176
www.openwall.com/lists/oss-security/2013/03/11/8
www.ubuntu.com/usn/USN-1787-1
www.ubuntu.com/usn/USN-1788-1
www.ubuntu.com/usn/USN-1792-1
www.ubuntu.com/usn/USN-1793-1
www.ubuntu.com/usn/USN-1794-1
www.ubuntu.com/usn/USN-1795-1
www.ubuntu.com/usn/USN-1796-1
www.ubuntu.com/usn/USN-1797-1
www.ubuntu.com/usn/USN-1798-1
bugzilla.redhat.com/show_bug.cgi?id=920499
github.com/torvalds/linux/commit/2ca39528c01a933f6689cd6505ce65bd6d68a530
Related
6.5 Medium
AI Score
Confidence
Low
3.6 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
0.0004 Low
EPSS
Percentile
8.3%