VulnerabilityModified
CVE-2018-20191
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).
HIGH 7.5EPSS 3.72%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.72% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- qemu/qemu · canonical/ubuntu linux · fedoraproject/fedora
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2018/12/18/1Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/106276Third Party Advisory, VDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.htmlPatch, Third Party Advisory
- https://usn.ubuntu.com/3923-1/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/12/18/1Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/106276Third Party Advisory, VDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/
- https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.htmlPatch, Third Party Advisory
- https://usn.ubuntu.com/3923-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.