CVE-2017-5857

Impact

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

Weakness classification

References

• NVD record
• CVE.org record
• 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