NULL pointer dereference in Qemu
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Qemu
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Fedoraproject Fedora — versions 29, 30
Weakness classification (CWE)
References
- www.securityfocus.com/bid/106276 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2018/12/18/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2018-12/msg03066.html (mailing-list, Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- usn.ubuntu.com/3923-1/ (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2018-20191?
- CVE-2018-20191 is a high-severity vulnerability in Qemu, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2018-12-20.
- How severe is CVE-2018-20191?
- High severity. CVSS v3 base score is 7.5 out of 10.