CVE-2013-4623 Denial of service in n/a
Remote attackers can cause a denial of service via infinite loop in PolarSSL certificate parsing during SSL/TLS handshake.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4623?
CVE-2013-4623 is a medium-severity denial of service vulnerability in n/a, published on 30 Sep 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.
Weakness: CWE-20
Which versions are affected by CVE-2013-4623?
It affects 1 product.
Products include Polarssl Polarssl.
How do I fix CVE-2013-4623?
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-2013-4623 being exploited?
There is no known exploitation of CVE-2013-4623 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2011-4574 Weak cryptography in PolarSSL
- CVE-2014-8628 Denial of service in n/a
- CVE-2013-5914 Buffer overflow in the ssl_read_record function in ssl_tls.c in PolarSSL before 1.1.8, when using TLS 1.1, might allow remote attackers to e
- CVE-2014-8627 Security feature bypass in n/a
- CVE-2013-5915 Information disclosure in n/a
Sources
Also known as GHSA-hfr2-452h-93q6.