Security Advisory

CVE-2026-58101

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-13 22:17:48

Last updated 2026-07-14 12:45:11

Assigner CPANSec

CVSS score not scored

State PUBLISHED

Description

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3_EXT_d2i(ext) returns NULL when an extension's DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid->keyid, which is NULL for an empty AKI SEQUENCE (DER 30 00) even when the parse succeeds. A caller invoking an affected helper on an extension from an untrusted certificate triggers a SIGSEGV that crashes the Perl process.

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