CVE-2020-25681

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-25681
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25681.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-25681
Related
Published
2021-01-20T17:15:12Z
Modified
2024-12-05T15:24:39.661117Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

Affected packages

Alpine:v3.10 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Affected versions

2.*

2.46-r0
2.47-r0
2.49-r0
2.50-r0
2.50-r1
2.51-r0
2.52-r0
2.52-r1
2.55-r0
2.57-r0
2.58-r0
2.59-r0
2.59-r1
2.60-r0
2.61-r0
2.62-r0
2.63-r0
2.64-r0
2.65-r0
2.66-r0
2.66-r1
2.66-r2
2.67-r0
2.68-r0
2.69-r0
2.70-r0
2.71-r0
2.72-r0
2.72-r1
2.73-r0
2.75-r0
2.75-r1
2.75-r2
2.76-r0
2.76-r1
2.76-r2
2.76-r3
2.76-r4
2.77-r0
2.78-r0
2.78-r1
2.78-r2
2.79-r0
2.79-r1
2.79-r2
2.80-r0
2.80-r1
2.80-r2
2.80-r3
2.80-r4

Alpine:v3.11 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Affected versions

2.*

2.46-r0
2.47-r0
2.49-r0
2.50-r0
2.50-r1
2.51-r0
2.52-r0
2.52-r1
2.55-r0
2.57-r0
2.58-r0
2.59-r0
2.59-r1
2.60-r0
2.61-r0
2.62-r0
2.63-r0
2.64-r0
2.65-r0
2.66-r0
2.66-r1
2.66-r2
2.67-r0
2.68-r0
2.69-r0
2.70-r0
2.71-r0
2.72-r0
2.72-r1
2.73-r0
2.75-r0
2.75-r1
2.75-r2
2.76-r0
2.76-r1
2.76-r2
2.76-r3
2.76-r4
2.77-r0
2.78-r0
2.78-r1
2.78-r2
2.79-r0
2.79-r1
2.79-r2
2.80-r0
2.80-r1
2.80-r2
2.80-r3
2.80-r4
2.80-r5

Alpine:v3.12 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Affected versions

2.*

2.46-r0
2.47-r0
2.49-r0
2.50-r0
2.50-r1
2.51-r0
2.52-r0
2.52-r1
2.55-r0
2.57-r0
2.58-r0
2.59-r0
2.59-r1
2.60-r0
2.61-r0
2.62-r0
2.63-r0
2.64-r0
2.65-r0
2.66-r0
2.66-r1
2.66-r2
2.67-r0
2.68-r0
2.69-r0
2.70-r0
2.71-r0
2.72-r0
2.72-r1
2.73-r0
2.75-r0
2.75-r1
2.75-r2
2.76-r0
2.76-r1
2.76-r2
2.76-r3
2.76-r4
2.77-r0
2.78-r0
2.78-r1
2.78-r2
2.79-r0
2.79-r1
2.79-r2
2.80-r0
2.80-r1
2.80-r2
2.80-r3
2.80-r4
2.80-r5
2.81-r0

Alpine:v3.13 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Affected versions

2.*

2.46-r0
2.47-r0
2.49-r0
2.50-r0
2.50-r1
2.51-r0
2.52-r0
2.52-r1
2.55-r0
2.57-r0
2.58-r0
2.59-r0
2.59-r1
2.60-r0
2.61-r0
2.62-r0
2.63-r0
2.64-r0
2.65-r0
2.66-r0
2.66-r1
2.66-r2
2.67-r0
2.68-r0
2.69-r0
2.70-r0
2.71-r0
2.72-r0
2.72-r1
2.73-r0
2.75-r0
2.75-r1
2.75-r2
2.76-r0
2.76-r1
2.76-r2
2.76-r3
2.76-r4
2.77-r0
2.78-r0
2.78-r1
2.78-r2
2.79-r0
2.79-r1
2.79-r2
2.80-r0
2.80-r1
2.80-r2
2.80-r3
2.80-r4
2.80-r5
2.81-r0
2.81-r1
2.82-r0

Alpine:v3.14 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Affected versions

2.*

2.46-r0
2.47-r0
2.49-r0
2.50-r0
2.50-r1
2.51-r0
2.52-r0
2.52-r1
2.55-r0
2.57-r0
2.58-r0
2.59-r0
2.59-r1
2.60-r0
2.61-r0
2.62-r0
2.63-r0
2.64-r0
2.65-r0
2.66-r0
2.66-r1
2.66-r2
2.67-r0
2.68-r0
2.69-r0
2.70-r0
2.71-r0
2.72-r0
2.72-r1
2.73-r0
2.75-r0
2.75-r1
2.75-r2
2.76-r0
2.76-r1
2.76-r2
2.76-r3
2.76-r4
2.77-r0
2.78-r0
2.78-r1
2.78-r2
2.79-r0
2.79-r1
2.79-r2
2.80-r0
2.80-r1
2.80-r2
2.80-r3
2.80-r4
2.80-r5
2.81-r0
2.81-r1
2.82-r0

Alpine:v3.15 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Alpine:v3.16 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Alpine:v3.17 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Alpine:v3.18 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Alpine:v3.19 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Alpine:v3.20 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Alpine:v3.21 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-r0

Debian:11 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/debian/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/debian/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/debian/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.83-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}