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HistorySep 14, 2022 - 1:37 p.m.

Security Bulletin: z/Transaction Processing Facility is affected by an OpenSSL vulnerability

2022-09-1413:37:11
www.ibm.com
38
z/tpf
openssl
vulnerability
cve-2019-1563
padding oracle
pkcs7_datadecode
cms_decrypt_set1_pkey
security bulletin
ibm
apar
download

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

0.015 Low

EPSS

Percentile

87.1%

Summary

The z/TPF version of OpenSSL was updated to address the vulnerability described by CVE-2019-1563.

Vulnerability Details

CVEID:CVE-2019-1563
**DESCRIPTION:**OpenSSL could allow a remote attacker to obtain sensitive information, caused by a padding oracle attack in PKCS7_dataDecode and CMS_decrypt_set1_pkey. By sending an overly large number of messages to be decrypted, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167022 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
z/Transaction Processing Facility 1.1

Remediation/Fixes

Product VRMF APAR Remediation/First Fix
z/TPF 1.1 PJ46740 Apply the APAR, which is available for download from the TPF Family Products: Maintenance web page.

Workarounds and Mitigations

None

Affected configurations

Vulners
Node
ibmz\/transaction_processing_facilityMatch1.1

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

0.015 Low

EPSS

Percentile

87.1%