SB2023042846 - Ubuntu update for openssl-ibmca
Published: April 28, 2023
Security Bulletin ID
SB2023042846
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Observable response discrepancy (CVE-ID: N/A)
CWE-ID: CWE-204 - Observable Response Discrepancy
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to observable discrepancy in the IBMCA engine. A remote attacker can perform a timing-based side channel attack in RSA.
Remediation
Install update from vendor's website.