CVE-2022-34293 Denial of service in n/a

What is CVE-2022-34293?

CVE-2022-34293 is a high-severity denial of service vulnerability in Wolfssl Wolfssl, published on 8 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

wolfSSL before 5.4.0 allows remote attackers to cause a denial of service via DTLS because a check for return-routability can be skipped.

Which versions are affected by CVE-2022-34293?

It affects 1 product.

Products include Wolfssl Wolfssl.

How do I fix CVE-2022-34293?

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-2022-34293 being exploited?

There is no known exploitation of CVE-2022-34293 in the wild and no public exploit code.

Other vulnerabilities in Wolfssl Wolfssl

• CVE-2024-5991 Buffer overread in domain name matching Critical 10.0
• CVE-2021-37155 Security feature bypass in n/a Critical 9.8
• CVE-2020-36177 Memory corruption in n/a Critical 9.8
• CVE-2014-2896 Memory corruption in n/a Critical 9.8
• CVE-2014-2897 Memory corruption in n/a Critical 9.8

All Wolfssl Wolfssl vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2022-34293, GHSA-w837-4755-g9cj, JLSEC-2026-671, UBUNTU-CVE-2022-34293.