Use After Free Affecting qemu package, versions <1:2.6+dfsg-3.1
Snyk CVSS
Attack Complexity
Low
Privileges Required
High
Availability
High
Threat Intelligence
EPSS
0.06% (25th
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-QEMU-426781
- published 10 Dec 2016
- disclosed 10 Dec 2016
Introduced: 10 Dec 2016
CVE-2016-6833 Open this link in a new tabHow to fix?
Upgrade Debian:unstable
qemu
to version 1:2.6+dfsg-3.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu
package and not the qemu
package as distributed by Debian
.
See How to fix?
for Debian:unstable
relevant fixed versions and status.
Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.
References
- https://security-tracker.debian.org/tracker/CVE-2016-6833
- http://git.qemu.org/?p=qemu.git;a=commit;h=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://security.gentoo.org/glsa/201609-01
- https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html
- http://www.openwall.com/lists/oss-security/2016/08/12/1
- http://www.openwall.com/lists/oss-security/2016/08/18/3
- http://www.securityfocus.com/bid/93255
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-6833
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8