CVE-2016-8578

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: 2016-11-04 · updated 2026-06-17

Description

The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.

Affected products

Debian Linux: 8.0
openSUSE Leap: 42.2
QEMU: through 2.7.1

References

http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
http://www.openwall.com/lists/oss-security/2016/10/10/14
http://www.openwall.com/lists/oss-security/2016/10/10/8
http://www.securityfocus.com/bid/93474
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.html
https://security.gentoo.org/glsa/201611-11
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
http://www.openwall.com/lists/oss-security/2016/10/10/14
http://www.openwall.com/lists/oss-security/2016/10/10/8
http://www.securityfocus.com/bid/93474
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

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