Buffer overflow in Linux Kernel
CVE-2018-20855
An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7 (Mailing List, Release Notes, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20190905-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20855?
- CVE-2018-20855 is a low-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2019-07-26.
- How severe is CVE-2018-20855?
- Low severity. CVSS v3 base score is 3.3 out of 10.