Detections
Analytics
RHEL 6 : rhev-hypervisor (RHSA-2016:0277)
high Nessus Plugin ID 88889
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
Updated rhev-hypervisor packages that fix one security issue are now available.Red Hat Product Security has rated this update as having Critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
The rhev-hypervisor 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 stack-based buffer overflow was found in the way the libresolv library performed dual A/AAAA DNS queries. A remote attacker could create a specially crafted DNS response which could cause libresolv to crash or, potentially, execute code with the permissions of the user running the library. Note: this issue is only exposed when libresolv is called from the nss_dns NSS service module. (CVE-2015-7547)
This issue was discovered by the Google Security Team and Red Hat.
Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to these updated packages.
Solution
Update the affected rhev-hypervisor6 and / or rhev-hypervisor7 packages.See Also
https://access.redhat.com/articles/2161461
https://access.redhat.com/errata/RHSA-2016:0277
Plugin Details
Severity: High
ID: 88889
File Name: redhat-RHSA-2016-0277.nasl
Version: 2.18
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 2/23/2016
Updated: 6/18/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6, p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor7, cpe:/o:redhat:enterprise_linux:6
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: 2/19/2016
Vulnerability Publication Date: 2/18/2016
Reference Information
CVE: CVE-2015-7547