CVE-2014-8867

Home/CVE/The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking

CVE

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.

MEDIUM · CVSS 4.9 EPSS 0.00126

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No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules0 YARA rules0

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Affected Products & Versions

redhat enterprise linuxall versions
redhat enterprise linux desktopall versions
xen<= 3.2.0
xenall versions
debian linuxall versions
opensuseall versions

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Scoring & Timeline

4.9

MEDIUM · CVSS v2 (legacy) · cve@mitre.org

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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Published to NVD01 Dec 2014 · 03:59 PM

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Vendor Advisories

rhsaRHSA-2015:0783Important

suse-csafSUSE-SU-2015:0940-1

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705

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://rhn.redhat.com/errata/RHSA-2015-0783.htmlThird Party Advisory

http://secunia.com/advisories/59949Permissions RequiredThird Party Advisory

http://secunia.com/advisories/62672Permissions RequiredThird Party Advisory

Show all 12 references

http://support.citrix.com/article/CTX200288

http://support.citrix.com/article/CTX201794

http://www.debian.org/security/2015/dsa-3140Third Party Advisory

http://www.securityfocus.com/bid/71331Third Party AdvisoryVDB Entry

http://xenbits.xenproject.org/xsa/advisory-112.htmlPatchVendor Advisory

https://security.gentoo.org/glsa/201504-04

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