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ubuntucveUbuntu.comUB:CVE-2023-37463
HistoryJul 13, 2023 - 12:00 a.m.

CVE-2023-37463

2023-07-1300:00:00
ubuntu.com
ubuntu.com
5
cmark-gfm
resource exhaustion
denial of service
commonmark
markdown
unix

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

0.001 Low

EPSS

Percentile

21.0%

cmark-gfm is an extended version of the C reference implementation of
CommonMark, a rationalized version of Markdown syntax with a spec. Three
polynomial time complexity issues in cmark-gfm may lead to unbounded
resource exhaustion and subsequent denial of service. These vulnerabilities
have been patched in 0.29.0.gfm.12.

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

0.001 Low

EPSS

Percentile

21.0%