CVE-2015-0291 Null dereference in n/a
Remote attackers can crash OpenSSL daemons via a NULL pointer dereference in signature algorithm handling during renegotiation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2015-0291?
CVE-2015-0291 is a medium-severity vulnerability in Openssl Openssl, published on 19 Mar 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The sigalgs implementation in t1_lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by using an invalid signature_algorithms extension in the ClientHello message during a renegotiation.
Which versions are affected by CVE-2015-0291?
It affects 1 product.
Products include Openssl Openssl.
How do I fix CVE-2015-0291?
No fix has been published for CVE-2015-0291 yet. Limit exposure of the affected software until one is available.
Is CVE-2015-0291 being exploited?
There is no known exploitation of CVE-2015-0291 in the wild and no public exploit code.
Other vulnerabilities in Openssl Openssl
Sources
Also known as GHSA-3hjm-7xr7-8fgf.