CVE-2013-1621 Denial of service in n/a

Medium 4.3 Published Updated

Remote attackers can cause a denial of service in PolarSSL via crafted CBC padding values during TLS session validation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2013-1621?

CVE-2013-1621 is a medium-severity denial of service vulnerability in n/a, published on 8 Feb 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Array index error in the SSL module in PolarSSL before 1.2.5 might allow remote attackers to cause a denial of service via vectors involving a crafted padding-length value during validation of CBC padding in a TLS session, a different vulnerability than CVE-2013-0169.

Weakness: CWE-20

Which versions are affected by CVE-2013-1621?

It affects 1 product.

Products include Polarssl Polarssl.

How do I fix CVE-2013-1621?

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-2013-1621 being exploited?

There is no known exploitation of CVE-2013-1621 in the wild and no public exploit code.

Sources

Also known as GHSA-pvmj-2j9v-f5w6.

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