SB2013012303 - Buffer overflow in Linux kernel
Published: January 23, 2013 Updated: August 11, 2020
Security Bulletin ID
SB2013012303
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2012-2137)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Buffer overflow in virt/kvm/irq_comm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to Message Signaled Interrupts (MSI), irq routing entries, and an incorrect check by the setup_routing_entry function before invoking the kvm_set_irq function.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f2ebd422f71cda9c791f76f85d2ca102ae34a1ed
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://secunia.com/advisories/50952
- http://secunia.com/advisories/50961
- http://ubuntu.5.n6.nabble.com/PATCH-Oneiric-CVE-2012-2137-KVM-Fix-buffer-overflow-in-kvm-set-irq-td4990566.html
- http://ubuntu.com/usn/usn-1529-1
- http://ubuntu.com/usn/usn-1607-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
- http://www.securityfocus.com/bid/54063
- http://www.ubuntu.com/usn/USN-1594-1
- http://www.ubuntu.com/usn/USN-1606-1
- http://www.ubuntu.com/usn/USN-1609-1
- https://bugzilla.redhat.com/show_bug.cgi?id=816151