CVE-2016-7156

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: 2016-12-10 · updated 2026-06-17
Weakness: CWE-704

Description

The pvscsi_convert_sglist function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging an incorrect cast.

Affected products

Debian Linux: 8.0
QEMU: through 2.7.1

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=49adc5d3f8c6bb75e55ebfeab109c5c37dea65e8
http://www.openwall.com/lists/oss-security/2016/09/06/3
http://www.openwall.com/lists/oss-security/2016/09/07/2
http://www.securityfocus.com/bid/92774
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg00772.html
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01246.html
https://security.gentoo.org/glsa/201609-01
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=49adc5d3f8c6bb75e55ebfeab109c5c37dea65e8
http://www.openwall.com/lists/oss-security/2016/09/06/3
http://www.openwall.com/lists/oss-security/2016/09/07/2
http://www.securityfocus.com/bid/92774

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