Vulnerability 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.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 3.1.0 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2018/12/18/2Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/106290Third Party AdvisoryVDB Entry
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.htmlPatchThird Party Advisory
- https://usn.ubuntu.com/3923-1/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/12/18/2Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/106290Third Party AdvisoryVDB Entry
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.htmlPatchThird Party Advisory
- https://usn.ubuntu.com/3923-1/Third Party Advisory
FAQ
What is CVE-2018-20124?
CVE-2018-20124 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.
How severe is CVE-2018-20124?
CVE-2018-20124 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-20124?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Canonical Ubuntu Linux.