SB2017031627 - Memory leak in QEMU
Published: March 16, 2017 Updated: July 28, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2017-5857)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within 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. A remote attacker can perform a denial of service attack.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.
References
- http://git.qemu-project.org/?p=qemu.git;a=commit;h=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