CVE-2021-47485

HIGH

Linux Kernel < 4.4.292 - Buffer Overflow

Title source: rule
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 6.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (2)
linux/linux_kernel 5.15 rc1 (7 CPE variants)
linux/linux_kernel 2.6.35 - 4.4.292
Published May 22, 2024
Tracked Since Feb 18, 2026