Home/CVE/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
CVE

CVE-2014-8594

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

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).

MEDIUM · CVSS 5.4 EPSS 0.01331
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

3
opensuseall versions
debian linuxall versions
xenall versions
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:H/Au:N/C:N/I:N/A:C
Published to NVD19 Nov 2014 · 06:59 PM
⚑

Vendor Advisories

1
suse-csafSUSE-SU-2015:0940-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
http://www.debian.org/security/2015/dsa-3140Third Party Advisory
http://www.securityfocus.com/bid/71149
http://xenbits.xen.org/xsa/advisory-109.htmlPatchVendor Advisory
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