CVE-2014-9030
The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.
- CVSS 2.0
- 7.1 HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C
- EPSS
- 2.20% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- xen/xen · debian/debian linux · opensuse/opensuse
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://secunia.com/advisories/62672Permissions Required, Third Party Advisory
- http://www.debian.org/security/2015/dsa-3140Third Party Advisory
- http://www.securityfocus.com/bid/71207Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-113.htmlPatch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98853
- https://security.gentoo.org/glsa/201504-04
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://secunia.com/advisories/62672Permissions Required, Third Party Advisory
- http://www.debian.org/security/2015/dsa-3140Third Party Advisory
- http://www.securityfocus.com/bid/71207Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-113.htmlPatch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98853
- https://security.gentoo.org/glsa/201504-04
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.