SB2023012527 - Multiple vulnerabilities in IBM PowerSC
Published: January 25, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2022-32206)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insecure processing of compressed HTTP responses. A malicious server can send a specially crafted HTTP response to curl and perform a denial of service attack by forcing curl to spend enormous amounts of allocated heap memory, or trying to and returning out of memory errors.
2) Incorrect default permissions (CVE-ID: CVE-2022-32207)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to incorrect default permissions set to cookies, alt-svc and hsts data stored in local files. A local user with ability to read such files can gain access to potentially sensitive information.
3) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2022-32208)
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper handling of message verification failures when performing FTP transfers secured by krb5. A remote attacker can perform MitM attack and manipulate data.
4) Resource exhaustion (CVE-ID: CVE-2022-32205)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to curl does not impose limits to the size of cookies stored in the system. A malicious server can serve excessive amounts of Set-Cookie: headers in a HTTP response to curl and consume all available disk space.
5) Input validation error (CVE-ID: CVE-2022-35252)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the way curl handles cookies with control codes (byte values below 32). When cookies that contain such control codes are later sent back to an
HTTP(S) server, it might make the server return a 400 response, effectively allowing a "sister site" to deny service to siblings.
Remediation
Install update from vendor's website.