CVE-2018-20855 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Kernel

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-200 — Sensitive Information Exposure8 documents7 sources
Severity
3.3LOWNVD
EPSS
0.1%
top 70.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelNetapp Active IQ Unified ManagerOpensuse Leap
Timeline
PublishedJul 26
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NExploitability: 1.8 | Impact: 1.4

Affected Packages4 packages

▶NVDlinux/linux_kernel< 4.18.7
▶Debianlinux/linux_kernel< 4.18.8-1+3
▶NVDopensuse/leap15.0, 15.1+1

Patches

Patch: git.kernel.org ↗Patch: github.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-xr6p-4wfc-3fxp: An issue was discovered in the Linux kernel before 4↗2022-05-24
▶
OSV
CVE-2018-20855: An issue was discovered in the Linux kernel before 4↗2019-07-26
▶
CVEList
CVE-2018-20855: An issue was discovered in the Linux kernel before 4↗2019-07-26
▶

📋Vendor Advisories

2
Red Hat
kernel: Information leak in create_qp_common in drivers/infiniband/hw/mlx5/qp.c↗2019-07-26
▶
Debian
CVE-2018-20855: linux - An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common i...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-20855 kernel: Information leak in create_qp_common in drivers/infiniband/hw/mlx5/qp.c↗2019-08-07
▶
Bugzilla
CVE-2018-20855 kernel: Information leak in create_qp_common in drivers/infiniband/hw/mlx5/qp.c [fedora-all]↗2019-08-07
▶
CVE-2018-20855 — Linux Kernel vulnerability | cvebase