CVE-2022-29222 Improper Certificate Validation in Pion DTLS

What is CVE-2022-29222?

CVE-2022-29222 is a medium-severity vulnerability in pion dtls, published on 21 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Pion DTLS is a Go implementation of Datagram Transport Layer Security. Prior to version 2.1.5, a DTLS Client could provide a Certificate that it doesn't posses the private key for and Pion DTLS wouldn't reject it. This issue affects users that are using Client certificates only. The connection itself is still secure. The Certificate provided by clients can't be trusted when using a Pion DTLS server prior to version 2.1.5. Users should upgrade to version 2.1.5 to receive a patch. There are currently no known workarounds.

Weakness: CWE-295

Which versions are affected by CVE-2022-29222?

5 open source packages ship an affected version, including github.com/pion/dtls/v2 and github.com/pion/dtls. It affects 1 product.

Products include Pion Dtls.

How do I fix CVE-2022-29222?

Upgrade github.com/pion/dtls/v2 to 2.1.5 or later.

Is CVE-2022-29222 being exploited?

There is no known exploitation of CVE-2022-29222 in the wild and no public exploit code.

Other vulnerabilities in pion dtls

• CVE-2019-20786 Improper Authenication in Pion DTLS Critical 9.8
• CVE-2022-29190 Header reconstruction method can be thrown into an infinite loop in Pion DTLS High 7.5
• CVE-2026-26014 Pion DTLS uses random nonce generation with AES GCM ciphers risks leaking the authentication key Medium 5.9
• CVE-2022-29189 Buffer for inbound DTLS fragments has no limit Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-29222, GHSA-w45j-f832-hxvh, GO-2022-0462, UBUNTU-CVE-2022-29222.