openssl-src contains Read Buffer Overflow in X.509 Name Constraint
Summary
openssl-src contains Read Buffer Overflow in X.509 Name Constraint
Original description
The description as published by the source.
A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs
after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to
continue certificate verification despite failure to construct a path to a trusted issuer.
The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory.
In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2022-4203 openssl Fixed in: 3.0.8-r0
- Debian DEBIAN-CVE-2022-4203 openssl Fixed in: 3.0.8-1
References
- advisory nvd.nist.gov
- web git.openssl.org
- web psirt.global.sonicwall.com
- web rustsec.org
- web security.gentoo.org
- web openssl.org