PT-2026-57917 · Jonasbn · Crypt::Openssl::X509

Publicado 2026-07-13 · Atualizado 2026-07-14 · CVE-2026-58101

NVD

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.

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CVE-2026-58101

Produtos afetados

Crypt::Openssl::X509

Referências · 4

• https://github.com/dsully/perl-crypt-openssl-x509/commit/4c1e2370556097c253ae27abe9e1097ea377fbd2.patch · Correção
• https://twitter.com/oss_security/status/2076872032407457955 · Publicação no Twitter
• https://metacpan.org/release/JONASBN/Crypt-OpenSSL-X509-2.1.3/source/Changes.md · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-58101 · Nota de Segurança