CVE-2022-48437 Security feature bypass in n/a
Attackers can bypass certificate validation checks in LibreSSL when a custom verification callback is configured, potentially accepting invalid certificates.
- 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-2022-48437?
CVE-2022-48437 is a medium-severity vulnerability in Openbsd Openbsd, published on 12 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in x509/x509_verify.c in LibreSSL before 3.6.1, and in OpenBSD before 7.2 errata 001. x509_verify_ctx_add_chain does not store errors that occur during leaf certificate verification, and therefore an incorrect error is returned. This behavior occurs when there is an installed verification callback that instructs the verifier to continue upon detecting an invalid certificate.
Weakness: CWE-295
Which versions are affected by CVE-2022-48437?
It affects 2 products.
Products include Openbsd Libressl, Openbsd Openbsd.
How do I fix CVE-2022-48437?
No fix has been published for CVE-2022-48437 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-48437 being exploited?
There is no known exploitation of CVE-2022-48437 in the wild and no public exploit code.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-786p-jmmh-gc9x.