CVE-2019-15945 Information

Description

OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c.

CVSS Vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.openwall.com/lists/oss-security/2019/12/29/1 https://github.com/OpenSC/OpenSC/commit/412a6142c27a5973c61ba540e33cdc22d5608e68 https://github.com/OpenSC/OpenSC/compare/f1691fc…12218d4 https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDSQLMZZYBHO5X3BK7D6E7E6NZIMZDI5/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.4