Cyber Resilience

CVE-2021-41073

High

Published: 19 September 2021

Published
19 September 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0168 82.6th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-41073 is a high-severity Release of Invalid Pointer or Reference (CWE-763) vulnerability in Linux Linux Kernel. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 17.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.

CWE(s)
CWE-763

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

linux
linux kernel
5.10 — 5.10.68 · 5.11 — 5.14.7
debian
debian linux
10.0
fedoraproject
fedora
33, 34
netapp
cloud backup
all versions
netapp
solidfire baseboard management controller
all versions
netapp
h410c firmware
all versions
netapp
h300s firmware
all versions
netapp
h500s firmware
all versions
netapp
h700s firmware
all versions
netapp
h300e firmware
all versions
+3 more product configuration(s) — see NVD for full list

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References