CVE-2017-6058: Buffer Overflow
First published: Fri Feb 17 2017(Updated: )
Buffer overflow in NetRxPkt::ehdr_buf in hw/net/net_rx_pkt.c in QEMU (aka Quick Emulator), when the VLANSTRIP feature is enabled on the vmxnet3 device, allows remote attackers to cause a denial of service (out-of-bounds access and QEMU process crash) via vectors related to VLAN stripping.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=2.8.1.1 |
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Reference Links
- https://lists.nongnu.org/archive/html/qemu-devel/2017-02/msg03527.html
- http://www.openwall.com/lists/oss-security/2017/02/17/2
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1423359
- https://bugzilla.redhat.com/show_bug.cgi?id=1423358
- http://git.qemu-project.org/?p=qemu.git;a=commit;h=df8bf7a7fe75eb5d5caffa55f5cd4292b757aea6
- http://www.securityfocus.com/bid/96277
- http://www.securitytracker.com/id/1037856
- https://security.gentoo.org/glsa/201704-01
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=df8bf7a7fe75eb5d5caffa55f5cd4292b757aea6
Frequently Asked Questions
What is the severity of CVE-2017-6058?
CVE-2017-6058 has a severity rating that signifies a denial of service risk due to a buffer overflow vulnerability.
How do I fix CVE-2017-6058?
To fix CVE-2017-6058, upgrade QEMU to a version greater than 2.8.1.1 to mitigate the buffer overflow vulnerability.
What software is affected by CVE-2017-6058?
CVE-2017-6058 affects QEMU versions up to and including 2.8.1.1 when the VLANSTRIP feature is enabled.
What type of attack does CVE-2017-6058 allow?
CVE-2017-6058 allows remote attackers to execute a denial of service attack, leading to an out-of-bounds access and crash of the QEMU process.
What feature in QEMU is linked to CVE-2017-6058?
The buffer overflow vulnerability in CVE-2017-6058 is linked to the VLANSTRIP feature when used with the vmxnet3 device.
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