SB2023022244 - Multiple vulnerabilities in Siemens Brownfield Connectivity Gateway
Published: February 22, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2021-41771)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists in debug/macho of the Go standard library when using the debug/macho standard library (stdlib) and malformed binaries are parsed using Open or OpenFat. A remote attacker can send a specially crafted file to perform a denial of service attack.
2) Input validation error (CVE-ID: CVE-2021-41772)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in archive/zip Reader.Open. A remote attacker can pass specially crafted ZIP archive containing an invalid name or an empty filename field to the application and perform a denial of service (DoS) attack.
3) Input validation error (CVE-ID: CVE-2021-44716)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
4) Incorrect Regular Expression (CVE-ID: CVE-2022-24921)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error in regexp.Compile in Go. A remote attacker can pass specially crafted input to the application and perform regular expression denial of service (ReDoS) attack.
5) Resource exhaustion (CVE-ID: CVE-2021-44717)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing HTTP/2 requests. A remote attacker can send multiple HTTP/2 requests to the server and exhaust all available memory resources.
6) Buffer overflow (CVE-ID: CVE-2022-24675)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the Golang's library encoding/pem. A remote attacker can send to victim a large (more than 5 MB) PEM input to cause a stack overflow in Decode and perform a denial of service (DoS) attack.
7) Improper Certificate Validation (CVE-ID: CVE-2022-27536)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to certificate.Verify in crypto/x509 in Go can be caused to panic on macOS when presented with certain malformed certificates. A remote unauthenticated attacker can use a TLS server to cause a TLS client to panic.
8) Integer overflow (CVE-ID: CVE-2022-28327)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to integer overflow in the Golang's library crypto/elliptic. A remote attacker can send a specially crafted scalar input longer than 32 bytes to cause P256().ScalarMult or P256().ScalarBaseMult to panic and perform a denial of service attack.
Remediation
Install update from vendor's website.