{"id":"DEBIAN-CVE-2026-58101","details":"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-\u003ekeyid, 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.","modified":"2026-09-14T17:03:21.314645590Z","published":"2026-07-13T23:16:47.020Z","upstream":["CVE-2026-58101"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-58101"}],"affected":[{"package":{"name":"libcrypt-openssl-x509-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libcrypt-openssl-x509-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.14-2","1.9.15-1","2.0.0+pristine-1","2.0.1-1","2.1.1-1","2.1.2-1","2.1.3-1","2.1.5-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58101.json"}},{"package":{"name":"libcrypt-openssl-x509-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libcrypt-openssl-x509-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.1-1","2.1.1-1","2.1.2-1","2.1.3-1","2.1.5-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58101.json"}},{"package":{"name":"libcrypt-openssl-x509-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libcrypt-openssl-x509-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.3-1"}]}],"versions":["2.0.1-1","2.1.1-1","2.1.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58101.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}