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ubuntuUbuntuUSN-6483-1
HistoryNov 15, 2023 - 12:00 a.m.

HTML Tidy vulnerability

2023-11-1500:00:00
ubuntu.com
17
ubuntu
html tidy
vulnerability
packages
denial of service
code execution
syntax checker

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.9 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

65.5%

Releases

  • Ubuntu 23.10
  • Ubuntu 23.04
  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS

Packages

  • tidy-html5 - HTML/XML syntax checker and reformatter

Details

Neeraj Pal discovered that HTML Tidy incorrectly handled parsing certain
HTML data. If a user or automated system were tricked into parsing
specially crafted HTML data, a remote attacker could cause HTML Tidy to
consume resources, leading to a denial of service, or possibly execute
arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu23.10noarchlibtidy5deb1< 2:5.6.0-11ubuntu0.23.10.1UNKNOWN
Ubuntu23.10noarchlibtidy-dev< 2:5.6.0-11ubuntu0.23.10.1UNKNOWN
Ubuntu23.10noarchlibtidy5deb1-dbgsym< 2:5.6.0-11ubuntu0.23.10.1UNKNOWN
Ubuntu23.10noarchtidy< 2:5.6.0-11ubuntu0.23.10.1UNKNOWN
Ubuntu23.10noarchtidy-dbgsym< 2:5.6.0-11ubuntu0.23.10.1UNKNOWN
Ubuntu23.04noarchlibtidy5deb1< 2:5.6.0-11ubuntu0.23.04.1UNKNOWN
Ubuntu23.04noarchlibtidy-dev< 2:5.6.0-11ubuntu0.23.04.1UNKNOWN
Ubuntu23.04noarchlibtidy5deb1-dbgsym< 2:5.6.0-11ubuntu0.23.04.1UNKNOWN
Ubuntu23.04noarchtidy< 2:5.6.0-11ubuntu0.23.04.1UNKNOWN
Ubuntu23.04noarchtidy-dbgsym< 2:5.6.0-11ubuntu0.23.04.1UNKNOWN
Rows per page:
1-10 of 201

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.9 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

65.5%