Excessive Iteration The advisory has been revoked - it doesn't affect any version of package qemu-kvm (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1204-QEMUKVM-619862
- published10 Dec 2016
- disclosed10 Dec 2016
Introduced: 10 Dec 2016
CVE-2016-7421 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:12.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by Ubuntu.
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7421
- http://git.qemu.org/?p=qemu.git;a=commit;h=d251157ac1928191af851d199a9ff255d330bec9
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://security-tracker.debian.org/tracker/CVE-2016-7421
- https://security.gentoo.org/glsa/201609-01
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.html
- http://www.openwall.com/lists/oss-security/2016/09/16/3
- http://www.openwall.com/lists/oss-security/2016/09/16/9
- http://www.securityfocus.com/bid/92998
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9