CVE-2026-3548
Buffer overflow in CRL number parsing in wolfSSL
Summary
Buffer overflow in CRL number parsing in wolfSSL
Original description
The description as published by the source.
Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs, either of these out of bound writes could be triggered. Note this only affects builds that specifically enable CRL support, and the user would need to load a CRL from an untrusted source.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-3548 wolfssl
- Ubuntu UBUNTU-CVE-2026-3548 wolfssl
References
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web wolfssl.com