Vulnerability Details : CVE-2018-20216
QEMU can have an infinite loop in hw/rdma/vmw/pvrdma_dev_ring.c because return values are not checked (and -1 is mishandled).
Products affected by CVE-2018-20216
- 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-2018-20216
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20216
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-2018-20216
-
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.Assigned by: nvd@nist.gov (Primary)
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20216
-
http://www.securityfocus.com/bid/106291
QEMU 'hw/rdma/vmw/pvrdma_dev_ring.c' Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://usn.ubuntu.com/3923-1/
USN-3923-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03052.html
Re: [Qemu-devel] [PATCH v2 6/6] pvrdma: check return value from pvrdma_iPatch;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2018/12/19/2
oss-security - CVE-2018-20216 QEMU: pvrdma: infinite loop in pvrdma_qp_send/recvMailing List;Patch;Third Party Advisory
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