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osvGoogleOSV:USN-4976-2
HistorySep 07, 2022 - 3:22 p.m.

dnsmasq vulnerability

2022-09-0715:22:39
Google
osv.dev
5

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

4.8 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

60.6%

USN-4976-1 fixed a vulnerability in Dnsmasq. This update provides
the corresponding update for Ubuntu 16.04 ESM.

Dnsmasq has been updated to 2.79-1 for Ubuntu 16.04 ESM in order to fix
some security issues.

Original advisory details:

Petr Mensik discovered that Dnsmasq incorrectly randomized source ports in
certain configurations. A remote attacker could possibly use this issue to
facilitate DNS cache poisoning attacks.

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

4.8 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

60.6%