What is CVE-2019-16921?

CVE-2019-16921 is a high-severity vulnerability in Linux Kernel, classified under Improper Initialization. CVSS score: 7.5/10. Published 2019-09-27.

How severe is CVE-2019-16921?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Linux Kernel

CVE-2019-16921

In the Linux kernel before 4.17, hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c does not initialize the resp data structure, which might allow attackers to obtain sensitive information from kernel stack memory, aka CID-df7e40425813.

Vulnerability class: Dirty Pipe (CVE-2022-0847)

EPSS: 0.020 (78.6th percentile) — read the EPSS interpretation.

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:H/I:N/A:N.

Affected products

Linux Linux_kernel
N/a — versions n/a

Weakness classification (CWE)

CWE-665 — Improper Initialization

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-16921?: CVE-2019-16921 is a high-severity vulnerability in Linux Kernel, classified under Improper Initialization. CVSS score: 7.5/10. Published 2019-09-27.
How severe is CVE-2019-16921?: High severity. CVSS v3 base score is 7.5 out of 10.