CVE-2016-7421

Description

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.

Category

4.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.html mailing list third party advisory patch
https://security.gentoo.org/glsa/201609-01 third party advisory vendor advisory
http://www.securityfocus.com/bid/92998 vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2016/09/16/9 third party advisory mailing list
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html third party advisory mailing list
http://www.openwall.com/lists/oss-security/2016/09/16/3 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2016-7421?
CVE-2016-7421 has been scored as a medium severity vulnerability.
How to fix CVE-2016-7421?
To fix CVE-2016-7421, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-7421 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-7421 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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