CVE-2016-9104

Severity: medium (CVSS 4.4 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: 2016-12-09 · updated 2026-06-17
Weakness: CWE-190

Description

Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.

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/2016/10/28/2
http://www.openwall.com/lists/oss-security/2016/10/30/8
http://www.securityfocus.com/bid/93956
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02942.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/2016/10/28/2
http://www.openwall.com/lists/oss-security/2016/10/30/8
http://www.securityfocus.com/bid/93956
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

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