SB2022061412 - Multiple vulnerabilities in IBM Security Identity Manager Virtual Appliance

Description

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2020-0778)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privilege so the system.

The vulnerability exists due to a boundary error in the Windows Network Connections Service when handling objects in memory. A local user can create a specially crafted application, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

2) Infinite loop (CVE-ID: CVE-2022-0778)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the BN_mod_sqrt() function when processing an ASN.1 certificate that contains elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. A remote attacker can supply a specially crafted certificate to the TLS server or client, consume all available system resources and cause denial of service conditions.

Remediation

Install update from vendor's website.

References

• https://www.ibm.com/blogs/psirt/security-bulletin-a-security-vulnerability-has-been-fixed-in-ibm-security-identity-manager-virtual-appliancecve-2020-0778/
• https://www.ibm.com/support/pages/node/6594527