CVE-2021-20515 Memory corruption in Informix Dynamic Server
A local privileged user can exploit a stack buffer overflow in IBM Informix Dynamic Server to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-20515?
CVE-2021-20515 is a medium-severity memory corruption vulnerability in Ibm Informix Dynamic Server, published on 30 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IBM Informix Dynamic Server 14.10 is vulnerable to a stack based buffer overflow, caused by improper bounds checking. A local privileged user could overflow a buffer and execute arbitrary code on the system or cause a denial of service condition. IBM X-Force ID: 198366.
Weakness: CWE-787
Which versions are affected by CVE-2021-20515?
It affects 1 product.
Products include Ibm Informix Dynamic Server.
How do I fix CVE-2021-20515?
No fix has been published for CVE-2021-20515 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-2021-20515 being exploited?
There is no known exploitation of CVE-2021-20515 in the wild and no public exploit code.
Other vulnerabilities in Ibm Informix Dynamic Server
Sources
Also known as GHSA-hvxp-j45w-m4cw.