A use-after-free in Busybox's awk applet leads to denial... · CVE-2021-42381 · GitHub Advisory Database · GitHub

A use-after-free in Busybox's awk applet leads to denial...

High severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Apr 26, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the hash_init function

References

Published by the National Vulnerability Database

Nov 15, 2021

Published to the GitHub Advisory Database May 24, 2022

Last updated Apr 26, 2023

Severity

High

7.2

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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