CVE-2021-44498 : Security Advisory and Response
Learn about CVE-2021-44498, a vulnerability in FIS GT.M through V7.0-000 where attackers can exploit crafted input to cause a crash due to a NULL pointer dereference. Find mitigation steps here.
An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Attackers can exploit crafted input to incorrectly initialize a type in the function f_incr in sr_port/f_incr.c, leading to a crash due to a NULL pointer dereference.
Understanding CVE-2021-44498
This CVE involves a vulnerability in FIS GT.M through V7.0-000 that can be exploited by attackers to cause a crash due to a NULL pointer dereference.
What is CVE-2021-44498?
The CVE-2021-44498 vulnerability allows attackers to manipulate input to improperly initialize a type, triggering a crash in the f_incr function within the YottaDB code base.
The Impact of CVE-2021-44498
The vulnerability can lead to a denial of service (DoS) as attackers can exploit it to cause a crash in the system, potentially disrupting critical processes.
Technical Details of CVE-2021-44498
This section covers the technical aspects of the CVE.
Vulnerability Description
The issue in FIS GT.M through V7.0-000 enables attackers to manipulate input, leading to incorrect type initialization in the f_incr function and subsequent crashes due to NULL pointer dereferences.
Affected Systems and Versions
- Affected software: FIS GT.M through V7.0-000
- Versions: V7.0-000
Exploitation Mechanism
Attackers can craft input to trigger incorrect type initialization in the vulnerable function, f_incr, resulting in a crash due to a NULL pointer dereference.
Mitigation and Prevention
Protective measures to address CVE-2021-44498.
Immediate Steps to Take
- Apply vendor patches promptly after release.
- Monitor security advisories for updates and apply them accordingly.
- Implement input validation mechanisms to prevent crafted input exploitation.
Long-Term Security Practices
- Conduct regular security training to enhance awareness of potential threats.
- Employ secure coding practices to reduce the likelihood of introducing vulnerabilities.
Patching and Updates
Regularly update FIS GT.M to the latest version to mitigate the CVE-2021-44498 vulnerability.