CVE-2015-5225: Buffer Overflow
First published: Fri Nov 06 2015(Updated: )
Buffer overflow in the vnc_refresh_server_surface function in the VNC display driver in QEMU before 2.4.0.1 allows guest users to cause a denial of service (heap memory corruption and process crash) or possibly execute arbitrary code on the host via unspecified vectors, related to refreshing the server display surface.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat OpenStack for IBM Power | =5.0 | |
| Red Hat OpenStack for IBM Power | =6.0 | |
| Red Hat OpenStack for IBM Power | =7.0 | |
| Fedora | =21 | |
| Fedora | =22 | |
| Fedora | =23 | |
| QEMU | <=2.4.0 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165484.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166798.html
- http://rhn.redhat.com/errata/RHSA-2015-1772.html
- http://rhn.redhat.com/errata/RHSA-2015-1837.html
- http://www.debian.org/security/2015/dsa-3348
- http://www.openwall.com/lists/oss-security/2015/08/21/6
- http://www.securityfocus.com/bid/76506
- http://www.securitytracker.com/id/1033547
- https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02495.html
- https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg05832.html
- https://security.gentoo.org/glsa/201602-01
Frequently Asked Questions
What is the severity of CVE-2015-5225?
CVE-2015-5225 has a severity rating that indicates it could lead to denial of service and potential arbitrary code execution.
How do I fix CVE-2015-5225?
To fix CVE-2015-5225, update QEMU to version 2.4.0.1 or later.
Which software is affected by CVE-2015-5225?
CVE-2015-5225 affects several versions of QEMU, Red Hat OpenStack 5.0, 6.0, and 7.0, and Fedora versions 21, 22, and 23.
What kind of issue does CVE-2015-5225 cause?
CVE-2015-5225 causes a buffer overflow leading to heap memory corruption and potential process crashes.
Can CVE-2015-5225 be exploited remotely?
Yes, CVE-2015-5225 can be exploited by guest users to impact the host system.
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