PT-2014-5003 · Xen+1 · Xen+1

Julien Grall + 1 · Published 2014-04-26 · Updated 2018-10-30 · CVE-2014-2986

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xen versions 4.4.x

Description The issue is related to the vgic distr mmio write function in the virtual guest interrupt controller (GIC) distributor. It allows local guest users to cause a denial of service, resulting in a NULL pointer dereference and host crash, when running on an ARM system.

Recommendations For Xen version 4.4.x, consider disabling the vgic distr mmio write function as a temporary workaround until a patch is available. Restrict access to the virtual guest interrupt controller to minimize the risk of exploitation.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2014-1545

CVE-2014-2986

Affected Products

Alt Linux

Xen

References · 16

• https://cve.org/CVERecord?id=CVE-2014-2986 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2014-2986 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2915 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2986 · Security Note
• https://errata.altlinux.org/ALT-PU-2014-1545 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-2986 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-94.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2014-2986 · Vendor Advisory
• http://xenbits.xenproject.org/xsa/advisory-94.html · Note
• http://openwall.com/lists/oss-security/2014/04/23/4 · Note
• http://securityfocus.com/bid/67047 · Note
• http://securitytracker.com/id/1030146 · Note
• http://openwall.com/lists/oss-security/2014/04/23/5 · Note
• https://packages.altlinux.org/ru/vuln/CVE-2014-2986 · Note
• http://lists.xen.org/archives/html/xen-announce/2014-04/msg00005.html · Note