CVE-2014-1896

Name of the Vulnerable Software and Affected Versions Xen versions 4.2.x through 4.4-RC

Description The issue is related to the do send and do recv functions in io.c in libvchan, which allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes. This triggers a "read or write past the end of the ring."

Recommendations For Xen versions 4.2.x through 4.4-RC, consider restricting access to the vulnerable do send and do recv functions in io.c in libvchan as a temporary workaround until a patch is available.