Heap overflow in OpenSSL - CVE-2016-7054

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
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 v4.0: 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/E:P/U:Green
CVE-ID: CVE-2016-7054
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: OpenSSL Software Foundation
Affected software:
OpenSSL

Detailed vulnerability description

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.




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


Sources