CVE-2015-7512: Buffer Overflow
First published: Fri Jan 08 2016(Updated: )
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU | <=2.4.1 | |
| QEMU | =2.5.0-rc0 | |
| QEMU | =2.5.0-rc1 | |
| QEMU | =2.5.0-rc2 | |
| Red Hat Enterprise Linux Desktop | =6.0 | |
| Red Hat Enterprise Linux Server EUS | =6.7 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Red Hat Enterprise Linux Workstation | =6.0 | |
| Red Hat OpenStack for IBM Power | =5.0 | |
| Red Hat Enterprise Virtualization | =3.0 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Debian Linux | =7.0 | |
| Debian Linux | =8.0 | |
| Oracle Linux | =6 |
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Reference Links
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
- http://rhn.redhat.com/errata/RHSA-2015-2694.html
- http://rhn.redhat.com/errata/RHSA-2015-2695.html
- http://rhn.redhat.com/errata/RHSA-2015-2696.html
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3471
- http://www.openwall.com/lists/oss-security/2015/11/30/3
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/78230
- http://www.securitytracker.com/id/1034527
- https://security.gentoo.org/glsa/201602-01
Frequently Asked Questions
What is the severity of CVE-2015-7512?
CVE-2015-7512 has a high severity due to its potential to cause a denial of service or allow remote code execution.
How do I fix CVE-2015-7512?
To fix CVE-2015-7512, upgrade to QEMU version 2.5.0-rc3 or later.
What systems are affected by CVE-2015-7512?
CVE-2015-7512 affects multiple versions of QEMU, specifically those up to version 2.4.1 and 2.5.0-rc0 to 2.5.0-rc2.
What type of vulnerability is CVE-2015-7512?
CVE-2015-7512 is a buffer overflow vulnerability located in the pcnet_receive function within QEMU.
Can CVE-2015-7512 lead to data breaches?
Yes, CVE-2015-7512 can potentially allow attackers to execute arbitrary code, leading to data breaches.
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