CVE-2018-20125: canonical ubuntu_linux NULL Pointer Dereference
CVSS: 7.5v3.1HighModified
AliasesDEBIAN-CVE-2018-20125
Published 20-12-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-20125 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 3.68% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
3.68%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 20-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.68%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.68% on 21-09-2026
21-09-202621-10-2026
EPSS score3.68%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Debian1 product
- qemu< 1:4.1-1
Qemu1 product
- qemu≤ 3.1.0
3 vendors · 3 products
References
5 links- www.openwall.com/lists/oss-security/2018/12/19/3Mailing ListX Refsource MLISTPatchThird Party Advisory
- lists.gnu.org/archive/html/qemu-devel/2018-12/msg02823.htmlMailing ListX Refsource MLISTPatchThird Party Advisory