CVE-2013-0914

low
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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.

References

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

http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html

http://rhn.redhat.com/errata/RHSA-2013-1051.html

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4

http://www.mandriva.com/security/advisories?name=MDVSA-2013:176

http://www.openwall.com/lists/oss-security/2013/03/11/8

http://www.ubuntu.com/usn/USN-1787-1

http://www.ubuntu.com/usn/USN-1788-1

http://www.ubuntu.com/usn/USN-1792-1

http://www.ubuntu.com/usn/USN-1793-1

http://www.ubuntu.com/usn/USN-1794-1

http://www.ubuntu.com/usn/USN-1795-1

http://www.ubuntu.com/usn/USN-1796-1

http://www.ubuntu.com/usn/USN-1797-1

http://www.ubuntu.com/usn/USN-1798-1

https://bugzilla.redhat.com/show_bug.cgi?id=920499

https://github.com/torvalds/linux/commit/2ca39528c01a933f6689cd6505ce65bd6d68a530

Details

Source: MITRE

Published: 2013-03-22

Updated: 2014-02-07

Type: CWE-264

Risk Information

CVSS v2

Base Score: 3.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 3.9

Severity: LOW

Tenable Plugins

View all (31 total)

IDNameProductFamilySeverity
83618SUSE SLES10 Security Update : kernel (SUSE-SU-2014:0536-1)NessusSuSE Local Security Checks
medium
83611SUSE SLES11 Security Update : kernel (SUSE-SU-2014:0287-1)NessusSuSE Local Security Checks
high
83603SUSE SLES10 Security Update : kernel (SUSE-SU-2013:1832-1)NessusSuSE Local Security Checks
high
76660RHEL 6 : MRG (RHSA-2013:0829)NessusRed Hat Local Security Checks
high
74878openSUSE Security Update : kernel (openSUSE-SU-2013:1971-1)NessusSuSE Local Security Checks
high
70222Amazon Linux AMI : kernel (ALAS-2013-218)NessusAmazon Linux Local Security Checks
medium
69942Oracle Linux 5 / 6 : Unbreakable Enterprise Kernel (ELSA-2013-2546)NessusOracle Linux Local Security Checks
high
69758Amazon Linux AMI : kernel (ALAS-2013-200)NessusAmazon Linux Local Security Checks
medium
68978Oracle Linux 5 / 6 : unbreakable enterprise kernel (ELSA-2013-2538)NessusOracle Linux Local Security Checks
high
68977Oracle Linux 5 / 6 : unbreakable enterprise kernel (ELSA-2013-2537)NessusOracle Linux Local Security Checks
medium
68945Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20130716)NessusScientific Linux Local Security Checks
medium
68940CentOS 6 : kernel (CESA-2013:1051)NessusCentOS Local Security Checks
medium
68921RHEL 6 : kernel (RHSA-2013:1051)NessusRed Hat Local Security Checks
medium
68920Oracle Linux 6 : kernel (ELSA-2013-1051)NessusOracle Linux Local Security Checks
medium
68844Oracle Linux 5 : kernel (ELSA-2013-1034)NessusOracle Linux Local Security Checks
medium
68843Oracle Linux 5 : kernel (ELSA-2013-1034-1)NessusOracle Linux Local Security Checks
medium
67241Scientific Linux Security Update : kernel on SL5.x i386/x86_64 (20130710)NessusScientific Linux Local Security Checks
medium
67235CentOS 5 : kernel (CESA-2013:1034)NessusCentOS Local Security Checks
medium
67219RHEL 5 : kernel (RHSA-2013:1034)NessusRed Hat Local Security Checks
medium
66975Mandriva Linux Security Advisory : kernel (MDVSA-2013:176)NessusMandriva Local Security Checks
high
66431Debian DSA-2668-1 : linux-2.6 - privilege escalation/denial of service/information leakNessusDebian Local Security Checks
medium
66344SuSE 11.2 Security Update : Linux kernel (SAT Patch Numbers 7667 / 7669 / 7675)NessusSuSE Local Security Checks
high
65872Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1798-1)NessusUbuntu Local Security Checks
medium
65871Ubuntu 12.10 : linux vulnerabilities (USN-1796-1)NessusUbuntu Local Security Checks
medium
65870Ubuntu 12.04 LTS : linux-lts-quantal vulnerabilities (USN-1795-1)NessusUbuntu Local Security Checks
medium
65869Ubuntu 12.04 LTS : linux vulnerabilities (USN-1793-1)NessusUbuntu Local Security Checks
medium
65868Ubuntu 10.04 LTS : linux vulnerabilities (USN-1792-1)NessusUbuntu Local Security Checks
medium
65800Ubuntu 10.04 LTS : linux-lts-backport-oneiric vulnerabilities (USN-1788-1)NessusUbuntu Local Security Checks
medium
65788Ubuntu 11.10 : linux vulnerabilities (USN-1787-1)NessusUbuntu Local Security Checks
medium
65650Fedora 17 : kernel-3.8.3-103.fc17 (2013-3909)NessusFedora Local Security Checks
high
65594Fedora 18 : kernel-3.8.3-201.fc18 (2013-3893)NessusFedora Local Security Checks
high