#VU63672 Input validation error in MariaDB - CVE-2021-46661
Published: May 25, 2022
Vulnerability identifier: #VU63672
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-46661
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
MariaDB
MariaDB
Software vendor:
Debian
Debian
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application crash in find_field_in_tables and find_order_in_list via an unused common table expression (CTE). A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://jira.mariadb.org/browse/MDEV-25766
- https://security.netapp.com/advisory/ntap-20220221-0002/
- https://mariadb.com/kb/en/security/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ4KDAGF3H4D4BDTHRAM6ZEAJJWWMRUO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKJRBYJAQCOPHSED43A3HUPNKQLDTFGD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZFZVMJL5UDTOZMARLXQIMG3BTG6UNYW/