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ubuntuUbuntuUSN-5408-1
HistoryMay 10, 2022 - 12:00 a.m.

Dnsmasq vulnerability

2022-05-1000:00:00
ubuntu.com
94
ubuntu 22.04 lts
ubuntu 21.10
ubuntu 20.04 lts
ubuntu 18.04 esm
ubuntu 16.04 esm
ubuntu 14.04 esm
dnsmasq
vulnerability
code execution

CVSS3

7.5

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

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

60.5%

Releases

  • Ubuntu 22.04 LTS
  • Ubuntu 21.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • dnsmasq - Small caching DNS proxy and DHCP/TFTP server

Details

Petr Menšík and Richard Johnson discovered that Dnsmasq incorrectly handled
certain inputs. An attacker could possibly use this issue to execute
arbitrary code or expose sensitive information.

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CVSS3

7.5

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

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

60.5%