DEBIAN-CVE-2020-12403

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Source
https://security-tracker.debian.org/tracker/CVE-2020-12403
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12403.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2020-12403
Upstream
Published
2021-05-27T19:15:07Z
Modified
2025-09-19T06:04:19Z
Summary
[none]
Details

A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.

References

Affected packages

Debian:11 / nss

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.55-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / nss

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.55-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / nss

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.55-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / nss

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.55-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}