CVE-2017-5552 — Memory leak in the virgl_resource_attach_backing function in hw/display/virtio-g

Memory leak in the virgl_resource_attach_backing 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_ATTACH_BACKING commands.

01What is this vulnerability?

Memory leak in the virgl_resource_attach_backing 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_ATTACH_BACKING commands.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-03-15T15:59:00.813
• Last modified: 2026-05-13T00:24:29.033

09References

• git.qemu.org — http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=33243031dad02d161225ba99d782616da…
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/01/20/17
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/01/21/5
• www.securityfocus.com — http://www.securityfocus.com/bid/95773
• security.gentoo.org — https://security.gentoo.org/glsa/201702-28
• git.qemu.org — http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=33243031dad02d161225ba99d782616da…
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/01/20/17
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/01/21/5
• www.securityfocus.com — http://www.securityfocus.com/bid/95773
• security.gentoo.org — https://security.gentoo.org/glsa/201702-28