RHEL 5 : rhev-hypervisor5 (RHSA-2012:1262)

high Nessus Plugin ID 78933
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An updated rhev-hypervisor5 package that fixes multiple security issues and various bugs is now available.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.

A flaw was found in the way QEMU handled VT100 terminal escape sequences when emulating certain character devices. A guest user with privileges to write to a character device that is emulated on the host using a virtual console back-end could use this flaw to crash the qemu-kvm process on the host or, possibly, escalate their privileges on the host. (CVE-2012-3515)

Multiple integer overflow flaws, leading to stack-based buffer overflows, were found in glibc's functions for converting a string to a numeric representation (strtod(), strtof(), and strtold()). If an application used such a function on attacker controlled input, it could cause the application to crash or, potentially, execute arbitrary code. (CVE-2012-3480)

Red Hat would like to thank the Xen project for reporting the CVE-2012-3515 issue.

This updated package provides updated components that include various bug fixes, as well as a fix for CVE-2012-3515 in the xen package;
however, for this component, it had no security impact on Red Hat Enterprise Virtualization Hypervisor itself.

Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues.

Solution

Update the affected rhev-hypervisor5 and / or rhev-hypervisor5-tools packages.

See Also

https://access.redhat.com/security/cve/cve-2012-3480

https://access.redhat.com/security/cve/cve-2012-3515

http://www.nessus.org/u?5f596184

http://www.nessus.org/u?cfcf474c

https://access.redhat.com/errata/RHSA-2012:1262

Plugin Details

Severity: High

ID: 78933

File Name: redhat-RHSA-2012-1262.nasl

Version: 1.12

Type: local

Agent: unix

Published: 11/8/2014

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

Temporal Vector: E:POC/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor5, p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor5-tools, cpe:/o:redhat:enterprise_linux:5

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/13/2012

Reference Information

CVE: CVE-2012-3480, CVE-2012-3515

BID: 54982, 55413

RHSA: 2012:1262