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CVE-2021-42378

CVE information

Published

2 years ago

Last Modified

4 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

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 getvar_i function.

CVSSv2.0 Score

Severity
Medium
Base Score
6.5/10
Exploit Score
8/10
Access Vector
Network
Access Complexity
Low
Authentication Required
Single
Impact Score
6.4/10
Confidentiality Impact
Partial
Availability Impact
Partial
Integrity Impact
Partial

CVSSv3.1 Score

Severity
High
Base Score
7.2/10
Exploit Score
1.2/10
Access Vector
Network
Access Complexity
Low
Privileges Required
High
Impact Score
5.9/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
  Yes
1.16.0 -
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  Yes
- -