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CentOS 7: CESA-2018:3658 Critical: kernel Vulnerability Fix

red hat
Calendar Grey July 22, 2013
Scroller Redhat Esm H88
Critical notice for Red Hat: virtio-win security patch addressing vulnerability enabling SYSTEM privilege escalation has been released.
An updated virtio-win package that fixes one security issue is now available for Red Hat Enterprise Linux 6 Supplementary

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

Summary

The virtio-win package provides paravirtualized network drivers for most Microsoft Windows operating systems. Paravirtualized drivers are virtualization-aware drivers used by fully virtualized guests running on Red Hat Enterprise Linux.
An unquoted search path flaw was found in the way the QEMU Guest Agent service installation was performed on Windows. Depending on the permissions of the directories in the unquoted search path, a local, unprivileged user could use this flaw to have a binary of their choosing executed with SYSTEM privileges. (CVE-2013-2231)
This issue was discovered by Lev Veyde of Red Hat.
Users of virtio-win are advised to upgrade to this updated package, which corrects this issue.

Topics%20covered

Topics Covered

security advisory Red Hat privilege escalation important network drivers virtio-win

References

https://access.redhat.com/security/cve/CVE-2013-2231 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop Supplementary (v. 6):
noarch: virtio-win-1.6.5-6.el6_4.noarch.rpm
Red Hat Enterprise Linux Server Supplementary (v. 6):
noarch: virtio-win-1.6.5-6.el6_4.noarch.rpm
Red Hat Enterprise Linux Workstation Supplementary (v. 6):
noarch: virtio-win-1.6.5-6.el6_4.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:1101-01
Product: Red Hat Enterprise Linux Supplementary
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1101.html
Issue date: 2013-07-22

Topic

An updated virtio-win package that fixes one security issue is nowavailable for Red Hat Enterprise Linux 6 Supplementary.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat privilege escalation important network drivers virtio-win

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop Supplementary (v. 6) - noarch

Red Hat Enterprise Linux Server Supplementary (v. 6) - noarch

Red Hat Enterprise Linux Workstation Supplementary (v. 6) - noarch

Bugs Fixed

980757 - CVE-2013-2231 qemu: qemu-ga win32 service unquoted search path

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