CVE-2018-20125 — hw/rdma/vmw/pvrdma_cmd

hw/rdma/vmw/pvrdma_cmd.c in QEMU allows attackers to cause a denial of service (NULL pointer dereference or excessive memory allocation) in create_cq_ring or create_qp_rings.

01What is this vulnerability?

hw/rdma/vmw/pvrdma_cmd.c in QEMU allows attackers to cause a denial of service (NULL pointer dereference or excessive memory allocation) in create_cq_ring or create_qp_rings.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2018-12-20T21:00:00.000Z
• Last modified: 2024-08-05T11:51:19.225Z

09References

• www.openwall.com — http://www.openwall.com/lists/oss-security/2018/12/19/3
• www.securityfocus.com — http://www.securityfocus.com/bid/106298
• lists.gnu.org — https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02823.html
• usn.ubuntu.com — https://usn.ubuntu.com/3923-1/