FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

libtasn1 -- Stack-based buffer overflow

Affected packages
		libtasn1	<	4.21.0

Details

VuXML ID	7e63d0dd-eeff-11f0-b135-c01803b56cc4
Discovery	2026-01-07
Entry	2026-01-11

oss-security@ list reports:

Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a buffer overflow in asn1_expend_octet_string.

[source]

References

CVE Name	CVE-2025-13151
URL	https://nvd.nist.gov/vuln/detail/CVE-2025-13151