Vulnerability identifier: #VU63828
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-404
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
MariaDB
Operating systems & Components /
Operating system package or component
Vendor: Debian
Description
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to improper release of held lock lock_bigbuffer when processing plugin/server_audit/server_audit.c method log_statement_ex. A local user can perform a denial of service attack due to the deadlock.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MariaDB: 10.0.0 - 10.0.38, 10.1.0 - 10.1.48, 10.2.0 - 10.2.44, 10.3.0 - 10.3.35, 10.4.0 - 10.4.25, 10.5.0 - 10.5.16, 10.6.0 - 10.6.8, 10.7.1 - 10.7.4, 10.8.1 - 10.8.3, 10.9.1
External links
http://jira.mariadb.org/browse/MDEV-26556?filter=-2
http://github.com/MariaDB/server/commit/d627d00b13ab2f2c0954ea7b77202470cb102944
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.