CVE-2016-7054 ChaCha20/Poly1305 heap-buffer-overflow
A heap-buffer-overflow in OpenSSL's ChaCha20/Poly1305 implementation allows remote attackers to cause a denial of service via crafted TLS payloads.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-7054?
CVE-2016-7054 is a high-severity memory corruption vulnerability in Openssl Openssl, published on 4 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2016-7054?
It affects 1 product.
Products include Openssl Openssl.
How do I fix CVE-2016-7054?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-7054 being exploited?
There is no known exploitation of CVE-2016-7054 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Openssl Openssl
Sources
Also known as DEBIAN-CVE-2016-7054, GHSA-3rqr-v2gc-jxp4.