Vulnerability Details : CVE-2018-20125
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-20125
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20125
0.33%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20125
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-20125
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20125
-
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02823.html
[Qemu-devel] [PATCH v2 3/6] pvrdma: check number of pages when creatingMailing List;Patch;Third Party Advisory
-
https://usn.ubuntu.com/3923-1/
USN-3923-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2018/12/19/3
oss-security - CVE-2018-20125 QEMU: pvrdma: null dereference or excessive memory allocation when creating QP/CQMailing List;Patch;Third Party Advisory
-
http://www.securityfocus.com/bid/106298
QEMU 'hw/rdma/vmw/pvrdma_cmd.c' Multiple Local Denial of Service VulnerabilitiesThird Party Advisory;VDB Entry
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