SB2021080607 - Multiple vulnerabilities in HCC Embedded InterNiche stack and NicheLite
Published: August 6, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 14 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2020-25767)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in the DNSv4 component. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
2) Out-of-bounds write (CVE-ID: CVE-2020-25928)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the DNSv4 component. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
3) Out-of-bounds read (CVE-ID: CVE-2020-25927)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the DNSv4 component. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
4) Input validation error (CVE-ID: CVE-2020-25926)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the DNS client does not set sufficiently random transaction IDs in the DNSv4 component. A remote attacker can pass specially crafted input to the application and perform a cache poisoning attack.
5) Out-of-bounds read (CVE-ID: CVE-2020-35683)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the ICMP component. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
6) Input validation error (CVE-ID: CVE-2020-35684)
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 the TCP compponent. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
7) Spoofing attack (CVE-ID: CVE-2020-35685)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to TCP ISNs are generated in a predictable manner. A remote attacker can spoof page content.
8) Input validation error (CVE-ID: CVE-2021-31228)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the DNSv4 component. A remote attacker can predict the source port of DNS queries to send forged DNS response packets and perform a cache poisoning attack.
9) Uncaught Exception (CVE-ID: CVE-2021-31400)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the TCP urgent data processing function may invoke a panic function. A remote attacker can cause an infinite loop.
10) Integer overflow (CVE-ID: CVE-2021-31401)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the lack of IP length validation. A remote attacker can send a specially crafted IP packet to trigger an integer overflow on the system.
11) Heap-based buffer overflow (CVE-ID: CVE-2021-31226)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the code that parses the HTTP POST. A remote attacker can trigger heap-based buffer overflow and cause a denial of service condition on the target system.
12) Heap-based buffer overflow (CVE-ID: CVE-2021-31227)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an incorrect signed integer comparison in the code that parses the HTTP POST. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
13) Infinite loop (CVE-ID: CVE-2021-27565)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within unhandled HTTP requests. A remote attacker can consume all available system resources and cause denial of service conditions.
14) Improper Null Termination (CVE-ID: CVE-2021-36762)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the TFTP packet processing function does not ensure that the filename is null-terminated. A remote attacker can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.