https://bugzilla.redhat.com/show_bug.cgi?id=2512099
Bug ID: 2512099
Summary: CVE-2026-58101 perl-Crypt-OpenSSL-X509:
Crypt::OpenSSL::X509: Denial of Service due to NULL
pointer dereference [epel-all]
Product: Fedora EPEL
Version: epel10
Status: NEW
Whiteboard: {"flaws": ["188065fd-e1d1-4238-a365-9cd438e84583"]}
Component: perl-Crypt-OpenSSL-X509
Keywords: Security, SecurityTracking
Severity: high
Priority: high
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected],
[email protected], [email protected]
Blocks: 2499852 (CVE-2026-58101)
Target Milestone: ---
Classification: Fedora
Disclaimer: Community trackers are created by Red Hat Product Security team on
a best effort basis. Package maintainers are required to ascertain if the flaw
indeed affects their package, before starting the update process.
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.
Referenced Bugs:
https://bugzilla.redhat.com/show_bug.cgi?id=2499852
[Bug 2499852] CVE-2026-58101 perl-Crypt-OpenSSL-X509: Crypt::OpenSSL::X509:
Denial of Service due to NULL pointer dereference
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