National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2013-0914 Detail

Description

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.

Source:  MITRE      Last Modified:  03/22/2013

Quick Info

CVE Dictionary Entry:
CVE-2013-0914
Original release date:
03/22/2013
Last revised:
02/06/2014
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
3.6 LOW
Vector:
(AV:L/AC:L/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore:
4.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2ca39528c01a933f6689cd6505ce65bd6d68a530 Patch External Source CONFIRM http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2ca39528c01a933f6689cd6505ce65bd6d68a530
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html External Source SUSE openSUSE-SU-2013:1187
http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html External Source SUSE openSUSE-SU-2013:1971
http://rhn.redhat.com/errata/RHSA-2013-1051.html External Source REDHAT RHSA-2013:1051
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4 External Source CONFIRM http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 External Source MANDRIVA MDVSA-2013:176
http://www.openwall.com/lists/oss-security/2013/03/11/8 External Source MLIST [oss-security] 20130311 CVE-2013-0914 Linux kernel sa_restorer information leak
http://www.ubuntu.com/usn/USN-1787-1 External Source UBUNTU USN-1787-1
http://www.ubuntu.com/usn/USN-1788-1 External Source UBUNTU USN-1788-1
http://www.ubuntu.com/usn/USN-1792-1 External Source UBUNTU USN-1792-1
http://www.ubuntu.com/usn/USN-1793-1 External Source UBUNTU USN-1793-1
http://www.ubuntu.com/usn/USN-1794-1 External Source UBUNTU USN-1794-1
http://www.ubuntu.com/usn/USN-1795-1 External Source UBUNTU USN-1795-1
http://www.ubuntu.com/usn/USN-1796-1 External Source UBUNTU USN-1796-1
http://www.ubuntu.com/usn/USN-1797-1 External Source UBUNTU USN-1797-1
http://www.ubuntu.com/usn/USN-1798-1 External Source UBUNTU USN-1798-1
https://bugzilla.redhat.com/show_bug.cgi?id=920499 External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=920499
https://github.com/torvalds/linux/commit/2ca39528c01a933f6689cd6505ce65bd6d68a530 Patch External Source CONFIRM https://github.com/torvalds/linux/commit/2ca39528c01a933f6689cd6505ce65bd6d68a530

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Change History 1 change record found - show changes