Vulnerability in Qemu
CVE-2017-5857
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking)
- www.openwall.com/lists/oss-security/2017/02/02/16 (mailing-list, Patch, Mailing List, Third Party Advisory)
- git.qemu-project.org/
- www.securityfocus.com/bid/95993 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201702-28 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/02/01/21 (mailing-list, Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-5857?
- CVE-2017-5857 is a medium-severity vulnerability in Qemu, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2017-03-16.
- How severe is CVE-2017-5857?
- Medium severity. CVSS v3 base score is 6.5 out of 10.