Null Pointer Dereference Vulnerability in libarchive by Vendor
CVE-2025-1632

4.8MEDIUM

Key Information:

Vendor
Vendor
Status
Libarchive
Vendor
CVE Published:
24 February 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A vulnerability exists in libarchive, specifically in the bsdunzip.c file, which can lead to a null pointer dereference. This issue allows for potential manipulation on local hosts, enabling attackers to execute exploits that could disrupt the normal operation of the software. Although the exploit has been publicly disclosed and may be leveraged by malicious actors, the vendor has not responded to initial disclosures regarding this security flaw.

Affected Version(s)

libarchive 3.7.0

libarchive 3.7.1

libarchive 3.7.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-1632 - Proof of Concept

References

https://vuldb.com/?id.296619
vdb-entrytechnical-description
https://vuldb.com/?ctiid.296619
signaturepermissions-required
https://vuldb.com/?submit.496460
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

rookie (VulDB User)
.