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From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: libcrypt-openssl-x509-perl: CVE-2026-58101 CVE-2026-58102
Message-ID: <178401168951.127721.15234518350535903985.reportbug@eldamar.lan>
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Date: Tue, 14 Jul 2026 08:48:09 +0200
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Source: libcrypt-openssl-x509-perl
Version: 2.1.2-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerabilities were published for libcrypt-openssl-x509-perl.

CVE-2026-58101[0]:
| 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.


CVE-2026-58102[1]:
| 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.
| When building the extension hash (via extensions(),
| extensions_by_long_name(), extensions_by_oid(), or
| has_extension_oid()), the code passes OBJ_obj2txt()'s return value
| as the hash-key length; because that value is the OID's full text
| length rather than the bytes written to the fixed-size buffer (129
| bytes), an OID whose text is longer than the 129-byte buffer causes
| a read past the allocation, exposing adjacent heap memory as the
| returned hash key. extensions_by_name() uses the static shortname
| path and is not affected.


If you fix the vulnerabilities please also make sure to include the
CVE (Common Vulnerabilities & Exposures) ids in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-58101
    https://www.cve.org/CVERecord?id=CVE-2026-58101
[1] https://security-tracker.debian.org/tracker/CVE-2026-58102
    https://www.cve.org/CVERecord?id=CVE-2026-58102

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
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