Use-after-free in MariaDB - CVE-2022-27447

Vulnerability identifier: #VU63529

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2022-27447

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
MariaDB
Amazon Linux AMI
Gentoo Linux
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Slackware Linux
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Server Applications
SUSE Linux Enterprise Server for SAP Applications
openSUSE Leap
openEuler
Ubuntu
Red Hat Software Collections
RecoverPoint for Virtual Machines
Unified Security Management
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
rh-mariadb103-mariadb (Red Hat package)
SUSE Linux Enterprise Module for Packagehub Subpackages
rh-mariadb103-galera (Red Hat package)
mysql-selinux (Red Hat package)
Judy-devel
Judy
asio-devel
mariadb-debuginfo
mariadb-common
mariadb-backup
mariadb-cracklib
mariadb-errmessage
mariadb-oqgraph-engine
mariadb-devel
mariadb-test
mariadb-debugsource
mariadb-embedded-devel
mariadb-gssapi-server
mariadb-server-galera
mariadb-server
mariadb
mariadb-embedded
mariadb-errmsg
mariadb-server-utils
mariadb-server (Ubuntu package)
mariadb-client-debuginfo
mariadb-client
libmariadbd19-debuginfo
libmariadbd19
libmariadbd-devel
mariadb-tools
mariadb-tools-debuginfo
mariadb-errormessages
mariadb105
rh-mariadb105-mariadb (Red Hat package)
mariadb (Red Hat package)
mariadb-pam
mariadb-bench-debuginfo
mariadb-bench
mariadb-galera
mariadb-test-debuginfo
mariadb-rpm-macros
galera
rh-mariadb105-galera (Red Hat package)
galera (Red Hat package)
IBM Cloud Object Storage Systems
IBM Cloud Pak for Business Automation

The vulnerability allows a remote user to perform a denial of service attack.

The vulnerability exists due to use-after-free error via the Binary_string::free_buffer() function in the /sql/sql_string.h component. A remote user can send specially crafted data and perform a denial of service attack.

Install updates from vendor's website.

• https://jira.mariadb.org/browse/MDEV-28099