CVE-2020-19861

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"
}

Git / github.com/nlnetlabs/ldns

Affected ranges

Type: GIT
Repo: https://github.com/nlnetlabs/ldns
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Last affected

53bc57512c19b11eebc403a4cb2bbf7295eb0db1

Affected versions

release-1.*

release-1.6.11

release-1.6.17

release-1.6.17rc1

release-1.6.17rc2

release-1.7.0

release-1.7.0-rc1

release-1.7.1

release-1.7.1-rc1