Description (CNA)
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://security.gentoo.org/glsa/201504-04
- http://secunia.com/advisories/62672
- http://xenbits.xen.org/xsa/advisory-109.html
- http://www.securityfocus.com/bid/71149
- http://www.debian.org/security/2015/dsa-3140
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
ADP enrichment
No English description supplied.
- https://security.gentoo.org/glsa/201504-04
- http://secunia.com/advisories/62672
- http://xenbits.xen.org/xsa/advisory-109.html
- http://www.securityfocus.com/bid/71149
- http://www.debian.org/security/2015/dsa-3140
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98767