Public Date:
877572: CVE-2012-5532 hypervkvpd: Netlink source address validation allows denial of service

The MITRE CVE dictionary describes this issue as:

The main function in tools/hv/hv_kvp_daemon.c in hypervkvpd, as distributed in the Linux kernel before 3.8-rc1, allows local users to cause a denial of service (daemon exit) via a crafted application that sends a Netlink message. NOTE: this vulnerability exists because of an incorrect fix for CVE-2012-2669.

Find out more about CVE-2012-5532 from the MITRE CVE dictionary dictionary and NIST NVD.


The Red Hat Security Response Team has rated this issue as having low security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification:

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.1
Base Metrics AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux Virtualization version 5 (hypervkvpd) RHSA-2013:0807 2013-05-09
Red Hat Enterprise Linux version 5 (hypervkvpd) RHSA-2013:0807 2013-05-09

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 hypervkvpd Not affected


This issue was discovered by Florian Weimer of the Red Hat Product Security Team.