Vulnerability Description
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/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 |
| Fedoraproject | Fedora | 29 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2018/12/18/1Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/106276Third Party AdvisoryVDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.htmlPatchThird Party Advisory
- https://usn.ubuntu.com/3923-1/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/12/18/1Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/106276Third Party AdvisoryVDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.htmlPatchThird Party Advisory
- https://usn.ubuntu.com/3923-1/Third Party Advisory
FAQ
What is CVE-2018-20191?
CVE-2018-20191 is a vulnerability with a CVSS score of 7.5 (HIGH). hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
How severe is CVE-2018-20191?
CVE-2018-20191 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-20191?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Canonical Ubuntu Linux, Fedoraproject Fedora.