CVE-2015-5333 Denial of service in LibreSSL
Remote attackers can cause denial of service via memory consumption in LibreSSL by sending crafted X.509 certificates with many ASN.1 object identifiers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-5333?
CVE-2015-5333 is a high-severity denial of service vulnerability in Opensuse Opensuse, published on 23 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Memory leak in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of service (memory consumption) via a large number of ASN.1 object identifiers in X.509 certificates.
Weakness: CWE-400
Which versions are affected by CVE-2015-5333?
It affects 2 products.
Products include Openbsd Libressl, Opensuse Opensuse.
How do I fix CVE-2015-5333?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2015-5333 being exploited?
There is no known exploitation of CVE-2015-5333 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Opensuse
Sources
Also known as GHSA-qrw8-4f9g-c6gc.