Main Vulnerability Database Vulnerabilities #VU5892

Heap overflow in OpenSSL - CVE-2016-7054

Published: February 23, 2017 / Updated: September 14, 2018

Vulnerability identifier: #VU5892

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-2016-7054

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

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

The vulnerability exists due to a boundary error when processing *-CHACHA20-POLY1305 TLS ciphersuites (ChaCha20/Poly1305) in OpenSSL. A remote attacker can send large payloads to affected service, triggering heap overflow.

Successful exploitation of the vulnerability may result in denial of service (DoS) conditions.

Affected software

OpenSSL
Storage Defender – Data Protect

How to mitigate CVE-2016-7054

OpenSSL 1.1.0 users should upgrade to 1.1.0c

This issue does not affect OpenSSL versions prior to 1.1.0

Storage Defender – Data Protect - update to 1.4.0

Links to Public Exploits and PoC-codes

Exploit #1054 - OpenSSL 1.1.0a/1.1.0b - Denial of Service (March 18, 2020)

External References

https://www.openssl.org/news/secadv/20161110.txt