Description
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://support.citrix.com/article/CTX225941 ↗
- http://www.securitytracker.com/id/1039176 ↗
- http://xenbits.xen.org/xsa/advisory-229.html ↗
- http://www.debian.org/security/2017/dsa-3981 ↗
- https://usn.ubuntu.com/3655-1/ ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1477656 ↗
- https://security.gentoo.org/glsa/201801-14 ↗
- https://usn.ubuntu.com/3655-2/ ↗
- http://www.openwall.com/lists/oss-security/2017/08/15/4 ↗
- http://www.securityfocus.com/bid/100343 ↗