CVE-2017-5857

Severity: medium (CVSS 6.5 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: 2017-03-16 · updated 2026-06-17
Weakness: CWE-401

Description

Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.

Affected products

QEMU: through 2.8.1.1

References

http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=5e8e3c4c75c199aa1017db816fca02be2a9f8798
http://www.openwall.com/lists/oss-security/2017/02/01/21
http://www.openwall.com/lists/oss-security/2017/02/02/16
http://www.securityfocus.com/bid/95993
https://bugzilla.redhat.com/show_bug.cgi?id=1418382
https://security.gentoo.org/glsa/201702-28
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=5e8e3c4c75c199aa1017db816fca02be2a9f8798
http://www.openwall.com/lists/oss-security/2017/02/01/21
http://www.openwall.com/lists/oss-security/2017/02/02/16
http://www.securityfocus.com/bid/95993
https://bugzilla.redhat.com/show_bug.cgi?id=1418382
https://security.gentoo.org/glsa/201702-28

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