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ubuntucveUbuntu.comUB:CVE-2021-2383
HistoryJul 21, 2021 - 12:00 a.m.

CVE-2021-2383

2021-07-2100:00:00
ubuntu.com
ubuntu.com
12
cve-2021-2383
oracle mysql server
optimizer
network access
dos

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

44.4%

Vulnerability in the MySQL Server product of Oracle MySQL (component:
Server: Optimizer). Supported versions that are affected are 8.0.25 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).

Notes

Author Note
leosilva since 5.5 is no longer upstream supported and so far we cannot patch it, marking it as ignored.

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

44.4%