CVE-2012-2137: Buffer Overflow
First published: Wed Apr 25 2012(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=2.6.33<3.0.72 | |
| Linux Kernel | >=3.1<3.2.24 | |
| Linux Kernel | >=3.3<3.4.81 | |
| Ubuntu Linux | =10.04 | |
| Ubuntu Linux | =11.10 | |
| Ubuntu Linux | =12.04 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Ubuntu | =10.04 | |
| Ubuntu | =11.10 | |
| Ubuntu | =12.04 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=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
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- https://launchpad.net/bugs/cve/CVE-2012-2137
- https://rhn.redhat.com/errata/RHSA-2012-0743.html
- https://security-tracker.debian.org/tracker/CVE-2012-2137
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2137
- https://nvd.nist.gov/vuln/detail/CVE-2012-2137
- https://ubuntu.com/security/CVE-2012-2137
Frequently Asked Questions
What is the severity of CVE-2012-2137?
CVE-2012-2137 has been categorized as a high severity vulnerability due to its potential to cause denial of service and may allow arbitrary code execution.
How do I fix CVE-2012-2137?
To fix CVE-2012-2137, update your Linux kernel to version 3.2.25 or higher, or apply the relevant patches if using affected distributions.
Which systems are affected by CVE-2012-2137?
CVE-2012-2137 affects Linux kernel versions prior to 3.2.25, including specific Ubuntu releases like 10.04, 11.10, and 12.04.
What impact does CVE-2012-2137 have on systems?
Exploitation of CVE-2012-2137 can lead to system crashes and potentially allow attackers to execute arbitrary code with elevated privileges.
Is CVE-2012-2137 exploitable remotely?
CVE-2012-2137 is primarily a local vulnerability, meaning it requires local access to the system to be exploited.
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