CVE-2012-6030 Denial of service in n/a
Local guest OS users can crash the Xen hypervisor host via broken locking checks in Transcendent Memory, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-6030?
CVE-2012-6030 is a high-severity denial of service vulnerability in Xen Xen, published on 23 Nov 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The do_tmem_op function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (host crash) and possibly have other unspecified impacts via unspecified vectors related to "broken locking checks" in an "error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
Weakness: CWE-20
Which versions are affected by CVE-2012-6030?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2012-6030?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2012-6030 being exploited?
There is no known exploitation of CVE-2012-6030 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2012-6030, GHSA-v379-6hwf-84m7.