SSL: OpenSSL tls_get_message_body Function init_msg Structure Use After Free
This signature detects attempts to exploit a known vulnerability in the tls_get_message_body function of OpenSSL. Successful exploitation allows the attacker to execute arbitrary code under the security context of the application using the vulnerable version of OpenSSL.
Extended Description
statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session.
Affected Products
Openssl openssl
References
CVE: CVE-2016-6309
Short Name
SSL:OPENSSL-TLS-GET-MSG-BD-UAF
Severity
Major
Recommended
False
Recommended Action
Drop
Category
SSL
Keywords
After CVE-2016-6309 Free Function OpenSSL Structure Use init_msg tls_get_message_body
Release Date
11/10/2016
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3337
False Positive
Unknown
Vendors
Openssl
CVSS Score
10.0