CVE-2026-58101

A flaw was found in Crypt::OpenSSL::X509, a Perl module for handling X.509 certificates. A remote attacker could exploit this vulnerability by presenting a malformed X.509 certificate. This could lead to a Denial of Service DoS by causing the Perl process to crash due to a NULL pointer dereferenc...

Fedora 43 : perl-Crypt-OpenSSL-X509 (2026-7b98f6d033)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-7b98f6d033 advisory. Fixes CVE-2026-58101 and CVE-2026-58102 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that...

Linux Distros Unpatched Vulnerability : CVE-2026-58102

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension...

Linux Distros Unpatched Vulnerability : CVE-2026-58101

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2iext returns NULL when an extension's DER...

CVE-2026-58102

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

DEBIAN-CVE-2026-58102

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

DEBIAN-CVE-2026-58101

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2iext returns NULL when an extension's DER value fails to parse. basicC, ia5string, and authatt dereference its result without a NULL check. keyiddata also dereferences akid-keyid,...

UBUNTU-CVE-2026-58101

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2iext returns NULL when an extension's DER value fails to parse. basicC, ia5string, and authatt dereference its result without a NULL check. keyiddata also dereferences akid-keyid,...

UBUNTU-CVE-2026-58102

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

CVE-2026-58102

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

CVE-2026-58101

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2iext returns NULL when an extension's DER value fails to parse. basicC, ia5string, and authatt dereference its result without a NULL check. keyiddata also dereferences akid-keyid,...

CVE-2026-58102 Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hv_exts

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

CVE-2026-58102

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

CVE-2026-58102 Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hv_exts

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

CVE-2026-58102

The Crypt::OpenSSL::X509 Perl extension (versions before 2.1.3 ) is vulnerable to a heap out-of-bounds read . The issue occurs during the building of extension hashes via functions such as extensions(), extensions_by_long_name(), extensions_by_oid(), or has_extension_oid(). The code incorrectly u...

CVE-2026-58102 Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hv_exts

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hvexts. When building the extension hash via extensions, extensionsbylongname, extensionsbyoid, or hasextensionoid, the code passes OBJobj2txt's return value as the hash-key...

CVE-2026-58101 Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2iext returns NULL when an extension's DER value fails to parse. basicC, ia5string, and authatt dereference its result without a NULL check. keyiddata also dereferences akid-keyid,...

CVE-2026-58101

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2iext returns NULL when an extension's DER value fails to parse. basicC, ia5string, and authatt dereference its result without a NULL check. keyiddata also dereferences akid-keyid,...

CVE-2026-58101

The Crypt::OpenSSL::X509 Perl extension (versions before 2.1.3 ) is vulnerable to a denial of service via a NULL pointer dereference . The issue stems from the X509V3_EXT_d2i(ext) function returning NULL when a DER value fails to parse; subsequently, basicC, ia5string, and auth_att dereference th...

JLSEC-2026-259 Issue summary: Use of -addreject option with the openssl x509 application adds a trusted use instead...

Issue summary: Use of -addreject option with the openssl x509 application adds a trusted use instead of a rejected use for a certificate. Impact summary: If a user intends to make a trusted certificate rejected for a particular use it will be instead marked as trusted for that use. A copy & paste...