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ubuntucveUbuntu.comUB:CVE-2022-21680
HistoryJan 14, 2022 - 12:00 a.m.

CVE-2022-21680

2022-01-1400:00:00
ubuntu.com
ubuntu.com
10

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

67.3%

Marked is a markdown parser and compiler. Prior to version 4.0.10, the
regular expression block.def may cause catastrophic backtracking against
some strings and lead to a regular expression denial of service (ReDoS).
Anyone who runs untrusted markdown through a vulnerable version of marked
and does not use a worker with a time limit may be affected. This issue is
patched in version 4.0.10. As a workaround, avoid running untrusted
markdown through marked or run marked on a worker thread and set a
reasonable time limit to prevent draining resources.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

67.3%