Heap-based buffer overflow in zlib - CVE-2023-6992

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Main Vulnerability Database Vulnerabilities #VU106260

Heap-based buffer overflow in zlib - CVE-2023-6992

Published: March 31, 2025


Vulnerability identifier: #VU106260
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-6992
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when handling compressed data in deflate.c. A remote attacker can pass specially crafted input to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.


Affected software

zlib
webMethods Managed File Transfer
Data Lakehouse

How to mitigate CVE-2023-6992

Install update from vendor's website.

zlib - update to 8352d10
Data Lakehouse - update to 1.3.0.0

External References

Related Security Bulletins