DEBIAN-CVE-2020-19861

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Source
https://security-tracker.debian.org/tracker/CVE-2020-19861
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-19861.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2020-19861
Upstream
Published
2022-01-21T15:15:07Z
Modified
2025-09-30T05:14:00.396623Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

When a zone file in ldns 1.7.1 is parsed, the function ldnsnsec3saltdata is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldnsrdfsize(saltrdf) byte data can be copied, causing heap overflow information leakage.

References

Affected packages

Debian:11 / ldns

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.7.1-2
1.7.1-2.1
1.7.1-3
1.8.1-1
1.8.3-1
1.8.3-1.1~exp1
1.8.3-1.1
1.8.3-2
1.8.4-1
1.8.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / ldns

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / ldns

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / ldns

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}