Out-of-Bounds Heap Read Vulnerability in Busybox's unlzma Applet
CVE-2021-42374

5.3MEDIUM

Key Information:

Vendor

Busybox

Status
Vendor
CVE Published:
15 November 2021

What is CVE-2021-42374?

An out-of-bounds heap read vulnerability has been identified in Busybox's unlzma applet, which can lead to the potential for unauthorized information disclosure and denial of service. This is triggered when specially crafted LZMA-compressed input is processed. Attackers can exploit this issue through any relevant applet or format that utilizes the affected functionality, emphasizing the importance of timely updates and security awareness.

Affected Version(s)

busybox < 1.34.0

References

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.