SSL: OpenSSL chacha20_poly1305_cipher Denial of Service

This signature detects attempts to exploit a known vulnerability in OpenSSL. A remote attacker could exploit this vulnerability by sending a crafted packet to the target application. Successful exploitation results in a denial of service condition.

Extended Description

In OpenSSL 1.1.0 before 1.1.0c, TLS connections using *-CHACHA20-POLY1305 ciphersuites are susceptible to a DoS attack by corrupting larger payloads. This can result in an OpenSSL crash. This issue is not considered to be exploitable beyond a DoS.

Affected Products

Openssl openssl

Short Name
SSL:OPENSSL-CHACHA-DOS
Severity
Major
Recommended
True
Recommended Action
Drop
Category
SSL
Keywords
CVE-2016-7053 CVE-2016-7054 Denial OpenSSL Service chacha20_poly1305_cipher of
Release Date
12/13/2016
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

5.0

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