CVE-2015-5225

Impact:
Important
Public Date:
2015-08-22
CWE:
CWE-122
Bugzilla:
1255896: CVE-2015-5225 Qemu: ui: vnc: heap memory corruption in vnc_refresh_server_surface
A heap-based buffer overflow issue was found in the QEMU emulator's VNC display driver. It could occur while refreshing the VNC server's display surface using the vnc_refresh_server_surface() routine. A privileged guest user could use this flaw to corrupt the heap memory and crash the QEMU process instance, or to potentially use it to execute arbitrary code on the host.

Find out more about CVE-2015-5225 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.

This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.

This issue does not affect the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This issue does affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. Future updates for this release may address this flaw.

CVSS v2 metrics

Base Score 6.5
Base Metrics AV:A/AC:H/Au:S/C:C/I:C/A:C
Access Vector Adjacent Network
Access Complexity High
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

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 OpenStack Platform 7.0 (Kilo) for RHEL 7 (qemu-kvm-rhev) RHSA-2015:1772 2015-09-14
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (qemu-kvm-rhev) RHSA-2015:1837 2015-09-24
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 (qemu-kvm-rhev) RHSA-2015:1772 2015-09-14
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 (qemu-kvm-rhev) RHSA-2015:1772 2015-09-14

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 qemu-kvm Not affected
Red Hat Enterprise Linux 6 qemu-kvm Not affected
Red Hat Enterprise Linux 5 xen Not affected
Red Hat Enterprise Linux 5 kvm Not affected

Acknowledgements

Red Hat would like to thank Mr Qinghao Tang from QIHU 360 Inc. and Mr Zuozhi from Alibaba Inc. for reporting this issue.

Last Modified
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.