CVE-2021-47485

HIGH

Linux Kernel 2.6.35-4.4.292 - Buffer Overflow in qib_user_sdma_pkt Fields

Title source: llm
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 0.0024
EPSS Percentile 14.7%
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 (20)
Linux/Linux < 2.6.35
Linux/Linux 2.6.35
Linux/Linux 4.14.255 - 4.14.*
Linux/Linux 4.19.216 - 4.19.*
Linux/Linux 4.4.292 - 4.4.*
Linux/Linux 4.9.290 - 4.9.*
Linux/Linux 5.10.77 - 5.10.*
Linux/Linux 5.14.16 - 5.14.*
Linux/Linux 5.15
Linux/Linux 5.4.157 - 5.4.*
... and 10 more
Published May 22, 2024
Tracked Since Feb 18, 2026