What’s Vulnerable › Vulnerabilities

CVE-2016-7054: ChaCha20/Poly1305 heap-buffer-overflow

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 32.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-05-04 · updated 2026-06-17
• Weakness: CWE-284

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: 1.1.0, 1.1.0a, 1.1.0b

References

• http://www.securityfocus.com/bid/94238
• http://www.securitytracker.com/id/1037261
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
• https://www.exploit-db.com/exploits/40899/
• https://www.openssl.org/news/secadv/20161110.txt
• http://www.securityfocus.com/bid/94238
• http://www.securitytracker.com/id/1037261
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
• https://www.exploit-db.com/exploits/40899/
• https://www.openssl.org/news/secadv/20161110.txt

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