CVE-2014-1950: Use After Free
First published: Fri Feb 14 2014(Updated: )
Use-after-free vulnerability in the xc_cpupool_getinfo function in Xen 4.1.x through 4.3.x, when using a multithreaded toolstack, does not properly handle a failure by the xc_cpumap_alloc function, which allows local users with access to management functions to cause a denial of service (heap corruption) and possibly gain privileges via unspecified vectors.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.1.1 | |
| Xen xen-unstable | =4.1.2 | |
| Xen xen-unstable | =4.1.3 | |
| Xen xen-unstable | =4.1.4 | |
| Xen xen-unstable | =4.1.5 | |
| Xen xen-unstable | =4.1.6.1 | |
| Xen xen-unstable | =4.2.0 | |
| Xen xen-unstable | =4.2.1 | |
| Xen xen-unstable | =4.2.2 | |
| Xen xen-unstable | =4.2.3 | |
| Xen xen-unstable | =4.3.0 | |
| Xen xen-unstable | =4.3.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2014-1950?
CVE-2014-1950 has a high severity rating as it can lead to denial of service due to a use-after-free vulnerability.
How do I fix CVE-2014-1950?
Fixing CVE-2014-1950 involves upgrading to a patched version of Xen, specifically versions later than 4.3.x.
Which versions are affected by CVE-2014-1950?
CVE-2014-1950 affects Xen versions 4.1.1 through 4.3.x.
What type of vulnerability is CVE-2014-1950?
CVE-2014-1950 is classified as a use-after-free vulnerability.
Who can exploit CVE-2014-1950?
Local users with access to management functions can exploit CVE-2014-1950 to cause a denial of service.
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- canonical/xen xen-unstable
- version/xen xen-unstable/4.1.1
- version/xen xen-unstable/4.1.2
- version/xen xen-unstable/4.1.3
- version/xen xen-unstable/4.1.4
- version/xen xen-unstable/4.1.5
- version/xen xen-unstable/4.1.6.1
- version/xen xen-unstable/4.2.0
- version/xen xen-unstable/4.2.1
- version/xen xen-unstable/4.2.2
- version/xen xen-unstable/4.2.3
- version/xen xen-unstable/4.3.0
- version/xen xen-unstable/4.3.1