Security Bulletin: Vulnerability CVE-2019-1543 in OpenSSL affects IBM i

2019-12-1814:26:38

www.ibm.com

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

JSON

Summary

OpenSSL is used by IBM i. IBM i has addressed the applicable CVE.

Vulnerability Details

CVEID: CVE-2019-1543 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the ChaCha20-Poly1305 AEAD cipher. By sending a message encrypted using a reused overly long nonce, an attacker could exploit this vulnerability to conduct serious confidentiality and integrity attacks.
CVSS Base Score: 4.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/157841> for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

Releases 7.1, 7.2, 7.3 and 7.4 of IBM i are affected.

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i. Releases 7.1, 7.2, 7.3 and 7.4 of IBM i are supported and will be fixed.

The IBM i PTF numbers are:
Release 7.1 – SI70818 Release 7.2, 7.3 & 7.4 – SI70819
<https://www-945.ibm.com/support/fixcentral/>

_Important note: _IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.