CVE-2011-1923 Weak cryptography in n/a

Medium 4.0 Published Updated

Man-in-the-middle attackers can obtain shared secret keys due to improper validation of Diffie-Hellman public parameters in PolarSSL.

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-2011-1923?

CVE-2011-1923 is a medium-severity vulnerability in n/a, published on 20 Jun 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Diffie-Hellman key-exchange implementation in dhm.c in PolarSSL before 0.14.2 does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-5095.

Weakness: CWE-310

Which versions are affected by CVE-2011-1923?

It affects 1 product.

Products include Polarssl Polarssl.

How do I fix CVE-2011-1923?

No fix has been published for CVE-2011-1923 yet. Limit exposure of the affected software until one is available.

Is CVE-2011-1923 being exploited?

There is no known exploitation of CVE-2011-1923 in the wild and no public exploit code.

Sources

Also known as GHSA-rwm6-hmj6-r6h5.

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