CVE-2021-29777 : Vulnerability Insights and Analysis
Learn about CVE-2021-29777 affecting IBM Db2 for Linux, UNIX and Windows versions 9.7, 10.1, 10.5, 11.1, and 11.5. An authenticated user could trigger a denial of service attack. Find out the impact and mitigation steps.
IBM Db2 for Linux, UNIX and Windows versions 9.7, 10.1, 10.5, 11.1, and 11.5 are susceptible to a denial of service attack if a table is being dropped while accessed in another session by an authenticated user. The impact is rated as MEDIUM with a CVSS base score of 5.3.
Understanding CVE-2021-29777
This CVE impacts IBM Db2 for Linux, UNIX and Windows versions and allows an authenticated user to cause a denial of service under specific circumstances.
What is CVE-2021-29777?
CVE-2021-29777 affects IBM Db2 for Linux, UNIX and Windows versions 9.7, 10.1, 10.5, 11.1, and 11.5. An authenticated user can trigger a denial of service by dropping a table while being accessed in another session.
The Impact of CVE-2021-29777
The impact of this vulnerability is rated as MEDIUM. It could allow an authenticated user to disrupt services by causing a denial of service attack.
Technical Details of CVE-2021-29777
CVE-2021-29777 has a CVSSv3 base score of 5.3, with the attack complexity rated as HIGH and the availability impact as HIGH.
Vulnerability Description
The vulnerability arises when a table is dropped by an authenticated user while being accessed in another session, which can lead to a denial of service.
Affected Systems and Versions
IBM Db2 for Linux, UNIX and Windows versions 9.7, 10.1, 10.5, 11.1, and 11.5 are affected by this vulnerability.
Exploitation Mechanism
An authenticated user can exploit this vulnerability by dropping a table while it is being accessed in another session, causing a denial of service.
Mitigation and Prevention
To address CVE-2021-29777, immediate steps should be taken to mitigate the risk and prevent potential attacks.
Immediate Steps to Take
Administrators should apply official fixes provided by IBM to remediate this vulnerability and prevent exploitation.
Long-Term Security Practices
It is recommended to follow security best practices by regularly updating systems, monitoring for any unauthorized activities, and enforcing least privilege access.
Patching and Updates
Keep the IBM Db2 for Linux, UNIX and Windows systems updated with the latest patches and security updates to prevent exploitation of this vulnerability.