CVE Database›Document archive›CVE-2021-3743

CVE-2021-3743

kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c

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Severity

Moderate

Red Hat Product Security

6.2

CVSS 3.1

Review impact separately from score.

Published · August 20, 2021

Updated · June 28, 2026

Description

An out-of-bounds (OOB) memory read flaw was found in the Qualcomm IPC router protocol in the Linux kernel. A missing sanity check allows a local attacker to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Statement

There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 6.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-125 · Out-of-bounds Read