CVE-2018-5382 Information

Description

Bouncy Castle BKS version 1 keystore (BKS-V1) files use an HMAC that is only 16 bits long which can allow an attacker to compromise the integrity of a BKS-V1 keystore. All BKS-V1 keystores are vulnerable. Bouncy Castle release 1.47 introduces BKS version 2 which uses a 160-bit MAC.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/103453 https://access.redhat.com/errata/RHSA-2018:2927 https://www.bouncycastle.org/releasenotes.html https://www.kb.cert.org/vuls/id/306792 https://www.oracle.com/security-alerts/cpuoct2020.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8