CVE-2018-20124

Description

hw/rdma/rdma_backend.c in QEMU allows guest OS users to trigger out-of-bounds access via a PvrdmaSqWqe ring element with a large num_sge value.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.17%
Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.html mailing list third party advisory patch
http://www.openwall.com/lists/oss-security/2018/12/18/2 mailing list third party advisory patch
http://www.securityfocus.com/bid/106290 vdb entry third party advisory
https://usn.ubuntu.com/3923-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-20124?
CVE-2018-20124 has been scored as a medium severity vulnerability.
How to fix CVE-2018-20124?
To fix CVE-2018-20124, 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-2018-20124 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-20124 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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