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Security Bulletin: IBM App Connect Enterprise Certified Container may be affected by OpenSSL vulnerabilities (CVE-2021-3449 and CVE-2021-3450)

Security Bulletin


Summary

App Connect Enterprise Certified Container may be vulnerable to denial of service due to OpenSSL vulnerability CVE-2021-3449, and to cerificate verification bypass due to OpenSSL vulnerabiltiy CVE-2021-3450

Vulnerability Details

CVEID:   CVE-2021-3449
DESCRIPTION:   OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in signature_algorithms processing. By sending a specially crafted renegotiation ClientHello message from a client, a remote attacker could exploit this vulnerability to cause the TLS server to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198752 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2021-3450
DESCRIPTION:   OpenSSL could allow a remote attacker to bypass security restrictions, caused by a a missing check in the validation logic of X.509 certificate chains by the X509_V_FLAG_X509_STRICT flag. By using any valid certificate or certificate chain to sign a specially crafted certificate, an attacker could bypass the check that non-CA certificates must not be able to issue other certificates and override the default purpose.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198754 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
App Connect Enterprise Certified Container1.0 with Operator
App Connect Enterprise Certified Container1.1 with Operator
App Connect Enterprise Certified Container1.2 with Operator
App Connect Enterprise Certified Container1.3 with Operator

Remediation/Fixes

App Connect Enterprise Certified Container 1.0, 1.2 and 1.3 CD

Upgrade to App Connect Enterprise Certified Container to Operator version 1.4.0 (available in CASE 1.4.0) or higher, and ensure that all components are at 11.0.0.12-r1 or higher.

App Connect Enterprise Certified Container 1.1 LTS

Upgrade to App Connect Enterprise Certified Container Operator version 1.1.1 EUS (available in CASE 1.1.1) or higher, and ensure that all components are at 11.0.0.12-r1-eus or higher.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

See https://www.ibm.com/support/pages/node/6239294 for information supported levels of the ACE Certified Container Operator

Change History

30 Apr 2021: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
30 April 2021

Initial Publish date:
30 April 2021

UID

ibm16448846

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