CVE-2020-25928 Memory corruption in n/a
Remote attackers can execute arbitrary code, cause denial of service, or leak information via a malicious DNS response packet in the NicheStack TCP/IP stack.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-25928?
CVE-2020-25928 is a critical memory corruption vulnerability in n/a, published on 18 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Buffer Overflow. The impact is: execute arbitrary code (remote). The component is: DNS response processing functions: dns_upcall(), getoffset(), dnc_set_answer(). The attack vector is: a specific DNS response packet. The code does not check the "response data length" field of individual DNS answers, which may cause out-of-bounds read/write operations, leading to Information leak, Denial-or-Service, or Remote Code Execution, depending on the context.
Which versions are affected by CVE-2020-25928?
It affects 1 product.
Products include Hcc-Embedded Nichestack Tcp\/Ip.
How do I fix CVE-2020-25928?
No fix has been published for CVE-2020-25928 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-25928 being exploited?
There is no known exploitation of CVE-2020-25928 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-p4cr-qpf4-f593.