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Fencer Intel
medium 4.9

CVE-2021-2154 json

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML).

published 5y ago modified 2mo ago also BIT-mariadb-2021-2154 , BIT-mariadb-min-2021-2154 , BIT-mysql-client-2021-2154 , EUVD-2021-16613

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 5.7.33 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Patch / fix

  • bitnami mariadb 10.2.38, 10.3.29, 10.4.19, 10.5.10
  • bitnami mariadb-min 10.2.38, 10.3.29, 10.4.19, 10.5.10
  • bitnami mysql-client 10.2.38, 10.3.29, 10.4.19, 10.5.10
  • mariadb mariadb 10.2.38, 10.3.29, 10.4.19, 10.5.10
  • mariadb-10.5 Debian 11 1:10.5.10-1

debian advisories DEBIAN-CVE-2021-2154

  • mysql-5.7 Ubuntu 18.04 LTS 5.7.34-0ubuntu0.18.04.1
  • mysql-5.7 Ubuntu Pro 16.04 LTS 5.7.35-0ubuntu0.16.04.1+esm1

ubuntu advisories UBUNTU-CVE-2021-2154

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • Judy RHEL 8, RHEL 8.4 EUS 1.0.5-18.module+el8+2765+cfa4f87b
  • galera RHEL 8 25.3.34-4.module+el8.5.0+14124+14ced695
  • mariadb RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-test RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-backup RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-common RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-errmsg RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-server RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695

red hat advisories RHSA-2022:4818RHSA-2022:1556RHSA-2022:1557RHSA-2022:1007RHSA-2022:1010RHSA-2023:6821

  • mariadb104 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 10.4.30-8.5.46
  • lz4 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.8.0-3.5.2
  • python-mysqlclient SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.3.14-8.9.2
  • mariadb-connector-c SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 3.1.22-2.35.1
  • mariadb SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +3 more 10.2.39-3.36.1
  • mariadb SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +10 more 10.2.39-3.40.1
  • mariadb SLE Module for Server Applications 15 SP2 10.4.20-3.9.1
  • mariadb SLE Module for Server Applications 15 SP3 10.5.11-3.3.1

suse advisories SUSE-RU-2023:4991-1SUSE-RU-2023:3956-1SUSE-SU-2021:2634-1SUSE-SU-2021:2617-1SUSE-SU-2021:2616-1SUSE-SU-2021:2605-1

  • mariadb openSUSE Tumbleweed 10.6.4-2.1
  • mariadb openSUSE Tumbleweed 10.6.5-3.1
  • mariadb openSUSE Leap 15.3 10.2.39-3.40.1
  • mariadb openSUSE Leap 15.3 10.4.20-3.9.1
  • mariadb openSUSE Leap 15.3 10.5.11-3.3.1

opensuse advisories openSUSE-SU-2024:11038-1openSUSE-SU-2024:11648-1openSUSE-SU-2021:2617-1openSUSE-SU-2021:2616-1openSUSE-SU-2021:2605-1

  • Judy AlmaLinux 8 1.0.5-18.module_el8.6.0+2867+72759d2f
  • Judy AlmaLinux 8 1.0.5-18.module_el8.5.0+2637+d11efe18
  • Judy AlmaLinux 8 1.0.5-18.module_el8.6.0+2761+593e5e59
  • galera AlmaLinux 8 26.4.9-4.module_el8.6.0+2761+593e5e59
  • galera AlmaLinux 8 26.4.9-4.module_el8.5.0+2637+d11efe18
  • mariadb AlmaLinux 8 3:10.5.13-1.module_el8.5.0+2637+d11efe18
  • mariadb AlmaLinux 8 3:10.5.13-1.module_el8.6.0+2761+593e5e59
  • mariadb-pam AlmaLinux 8 3:10.5.13-1.module_el8.6.0+2761+593e5e59

almalinux advisories ALSA-2022:1557ALSA-2022:1556

  • Judy Rocky Linux 8 1.0.5-18.module+el8.4.0+427+adf35707
  • galera Rocky Linux 8 26.4.9-4.module+el8.5.0+773+f75e97f7
  • mariadb Rocky Linux 8 3:10.5.13-1.module+el8.5.0+773+f75e97f7
  • galera Rocky Linux 8 25.3.34-4.module+el8.5.0+777+18007c86
  • mariadb Rocky Linux 8 3:10.3.32-2.module+el8.5.0+777+18007c86

rocky linux advisories RLSA-2022:1557RLSA-2022:1556

  • mariadb Alpine 3.10 10.3.29-r0
  • mariadb Alpine 3.12, Alpine 3.11 10.4.19-r0
  • mariadb Alpine 3.13 10.5.10-r0
  • mariadb Alpine 3.24, Alpine 3.23, Alpine 3.22 +8 more 10.5.11-r0

alpine advisories ALPINE-CVE-2021-2154

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mariadb Arch Linux 10.5.10-1

arch linux advisories AVG-1882

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-2154 updated cvss 4.9

mysql: Server: DML unspecified vulnerability (CPU Apr 2021)

  • Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded Red Hat OpenStack Platform 10 (Newton) mariadb-galera, mariadb-galera-common, mariadb-galera-server
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 13 (Queens) mariadb, mariadb-libs, mariadb-test, mariadb-common, mariadb-config, mariadb-errmsg, +3 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) Judy 1.0.5-18.module+el8+2765+cfa4f87b, Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.9-4.module+el8.5.0+14125+d11efe18, galera 25.3.34-4.module+el8.5.0+14124+14ced695, mariadb 10.3.32-2.module+el8.5.0+14124+14ced695, mariadb 10.5.13-1.module+el8.5.0+14125+d11efe18, +21 more
    fixed: vendor fix RHSA-2022:1556
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.14-1.module+el8.4.0+20291+fd32d29c, mariadb 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-pam 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-test 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-backup 10.5.22-1.module+el8.4.0+20291+fd32d29c, +8 more Red Hat Enterprise Linux AppStream E4S (v.8.4) Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.14-1.module+el8.4.0+20291+fd32d29c, mariadb 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-pam 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-test 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-backup 10.5.22-1.module+el8.4.0+20291+fd32d29c, +8 more
    fixed: vendor fix RHSA-2023:6821
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) Judy 1.0.5-18.module+el8+2765+cfa4f87b, galera 25.3.34-4.module+el8.4.0+15058+0c3d11c7, mariadb 10.3.32-2.module+el8.4.0+15058+0c3d11c7, mariadb-test 10.3.32-2.module+el8.4.0+15058+0c3d11c7, mariadb-backup 10.3.32-2.module+el8.4.0+15058+0c3d11c7, mariadb-common 10.3.32-2.module+el8.4.0+15058+0c3d11c7, +7 more
    fixed: vendor fix RHSA-2022:4818
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.14-1.module+el8.4.0+20291+fd32d29c, mariadb 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-pam 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-test 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-backup 10.5.22-1.module+el8.4.0+20291+fd32d29c, +8 more
    fixed: vendor fix RHSA-2023:6821
  • Red Hat Software Collections for RHEL Workstation(v. 7) rh-mariadb105-galera 26.4.9-3.el7, rh-mariadb103-galera 25.3.34-4.el7, rh-mariadb103-mariadb 10.3.32-2.el7, rh-mariadb105-mariadb 10.5.13-1.el7, rh-mariadb105-mariadb-pam 10.5.13-1.el7, rh-mariadb103-mariadb-test 10.3.32-2.el7, +34 more Red Hat Software Collections for RHEL(v. 7) rh-mariadb105-galera 26.4.9-3.el7, rh-mariadb103-galera 25.3.34-4.el7, rh-mariadb103-mariadb 10.3.32-2.el7, rh-mariadb105-mariadb 10.5.13-1.el7, rh-mariadb105-mariadb-pam 10.5.13-1.el7, rh-mariadb103-mariadb-test 10.3.32-2.el7, +34 more
    fixed: vendor fix RHSA-2022:1010
  • Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded Red Hat Enterprise Linux 8 mecab, mysql, mysql-libs, mysql-test, mecab-ipadic, mysql-common, +4 more Red Hat Enterprise Linux 9 mariadb, mariadb-pam, mariadb-test, mariadb-backup, mariadb-common, mariadb-errmsg, +6 more Red Hat Software Collections rh-mysql80-mysql, rh-mysql80-mysql-test, rh-mysql80-mysql-common, rh-mysql80-mysql-config, rh-mysql80-mysql-errmsg, rh-mysql80-mysql-server, +4 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-027-02 updated cvss 4.9

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2y ago

Exploit prediction

2.60% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P
OSV 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami mariadb
>=10.2.0, <10.2.38
>=10.3.0, <10.3.29
>=10.4.0, <10.4.19
>=10.5.0, <10.5.10
10.2.38
10.3.29
10.4.19
10.5.10
bitnami mariadb-min
>=10.2.0, <10.2.38
>=10.3.0, <10.3.29
>=10.4.0, <10.4.19
>=10.5.0, <10.5.10
10.2.38
10.3.29
10.4.19
10.5.10
bitnami mysql-client
>=10.2.0, <10.2.38
>=10.3.0, <10.3.29
>=10.4.0, <10.4.19
>=10.5.0, <10.5.10
10.2.38
10.3.29
10.4.19
10.5.10

Affected products

  • Oracle Corporation MySQL Server

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.