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ubuntuUbuntuUSN-4976-1
HistoryJun 02, 2021 - 12:00 a.m.

Dnsmasq vulnerability

2021-06-0200:00:00
ubuntu.com
110

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

Low

0.002 Low

EPSS

Percentile

60.6%

JSON

Releases

  • Ubuntu 21.04
  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

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

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.

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchdnsmasq< 2.84-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchdnsmasq-base< 2.84-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchdnsmasq-base-lua< 2.84-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchdnsmasq-utils< 2.84-1ubuntu2.1UNKNOWN
Ubuntu20.10noarchdnsmasq< 2.82-1ubuntu1.3UNKNOWN
Ubuntu20.10noarchdnsmasq-base< 2.82-1ubuntu1.3UNKNOWN
Ubuntu20.10noarchdnsmasq-base-lua< 2.82-1ubuntu1.3UNKNOWN
Ubuntu20.10noarchdnsmasq-utils< 2.82-1ubuntu1.3UNKNOWN
Ubuntu20.04noarchdnsmasq< 2.80-1.1ubuntu1.4UNKNOWN
Ubuntu20.04noarchdnsmasq-base< 2.80-1.1ubuntu1.4UNKNOWN
Rows per page:
1-10 of 161

Related

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fedora
fedora
[SECURITY] Fedora 33 Update: dnsmasq-2.85-1.fc33
2021-04-23 19:02:10
[SECURITY] Fedora 34 Update: dnsmasq-2.85-1.fc34
2021-04-24 20:22:41
[SECURITY] Fedora 32 Update: dnsmasq-2.85-1.fc32
2021-04-24 18:23:55
nessus
nessus
EulerOS Virtualization 2.9.1 : dnsmasq (EulerOS-SA-2021-2189)
2021-07-13 00:00:00
EulerOS 2.0 SP8 : dnsmasq (EulerOS-SA-2021-2458)
2021-09-24 00:00:00
Rocky Linux 8 : dnsmasq (RLSA-2021:4153)
2023-11-06 00:00:00
redhat
redhat
(RHSA-2021:4153) Moderate: dnsmasq security and bug fix update
2021-11-09 08:24:48
ubuntu
ubuntu
Dnsmasq vulnerability
2022-09-07 00:00:00
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cvelist
CVE-2021-3448
2021-04-08 22:06:45
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Security fix for the ALT Linux 9 package dnsmasq version 2.85-alt1
2021-04-12 00:00:00
Security fix for the ALT Linux 10 package dnsmasq version 2.85-alt1
2021-04-09 00:00:00
osv
osv
Moderate: dnsmasq security and bug fix update
2021-11-09 08:24:48
Moderate: dnsmasq security and bug fix update
2021-11-09 08:24:48
CVE-2021-3448
2021-04-08 23:15:00
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Moderate Photon OS Security Update - PHSA-2021-0093
2021-09-02 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0386
2021-08-31 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0431
2021-08-31 00:00:00
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Mageia: Security Advisory (MGASA-2021-0231)
2022-01-28 00:00:00
Ubuntu: Security Advisory (USN-4976-2)
2022-09-16 00:00:00
Huawei EulerOS: Security Advisory for dnsmasq (EulerOS-SA-2021-2458)
2021-09-24 00:00:00
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almalinux
Moderate: dnsmasq security and bug fix update
2021-11-09 08:24:48
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dnsmasq security and bug fix update
2021-11-16 00:00:00
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Updated dnsmasq packages fix a security vulnerability
2021-06-08 17:33:02
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[slackware-security] dnsmasq
2021-04-12 20:29:49
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CVE-2021-3448 affecting package dnsmasq 2.84-1
2021-05-06 23:56:42
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CVE-2021-3448
2021-04-08 23:15:12
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Design/Logic Flaw
2021-04-08 23:15:00
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CVE-2021-3448
2021-04-08 23:15:12
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dnsmasq -- cache poisoning vulnerability in certain configurations
2021-03-17 00:00:00
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Dnsmasq: DNS cache poisoning
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CVE-2021-3448
2021-04-08 23:15:12
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dnsmasq security and bug fix update
2021-11-09 08:24:48
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redhatcve
CVE-2021-3448
2021-03-17 11:03:59
suse
suse
Security update for dnsmasq (moderate)
2021-10-31 00:00:00
Security update for dnsmasq (moderate)
2021-10-27 00:00:00
rosalinux
rosalinux
Advisory ROSA-SA-2021-1823
2021-07-02 16:38:26
oracle
oracle
Oracle Critical Patch Update Advisory - January 2022
2022-01-18 00:00:00

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

Low

0.002 Low

EPSS

Percentile

60.6%

JSON
Related for USN-4976-1
fedora3nessus33redhat1ubuntu1cvelist1altlinux2osv5photon7openvas24almalinux1oraclelinux1mageia1slackware1cbl_mariner1nvd1prion1alpinelinux1freebsd1gentoo1veracode1ubuntucve1cve1debiancve1rocky1redhatcve1suse2rosalinux1oracle1