CVE-2016-6836

Severity: medium (CVSS 6.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-12-10 · updated 2026-06-17
Weakness: CWE-665

Description

The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.

Affected products

Debian Linux: 8.0
QEMU: through 2.7.1

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fdda170e50b8af062cf5741e12c4fb5e57a2eacf
http://www.openwall.com/lists/oss-security/2016/08/11/5
http://www.openwall.com/lists/oss-security/2016/08/18/5
http://www.securityfocus.com/bid/92444
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg02108.html
https://security.gentoo.org/glsa/201609-01
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fdda170e50b8af062cf5741e12c4fb5e57a2eacf
http://www.openwall.com/lists/oss-security/2016/08/11/5
http://www.openwall.com/lists/oss-security/2016/08/18/5
http://www.securityfocus.com/bid/92444
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

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