VDB
DEBIAN-CVE-2020-12403
DEBIAN-CVE-2020-12403
PUBLISHED
CVSS 9.100000381469727 CRITICAL
Record from OSV · Published May 27, 2021
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| nss | Debian:12 | 2:3.55-1 |
| nss | Debian:13 | 2:3.55-1 |
| nss | Debian:14 | 2:3.55-1 |
Risk scores
CVSS 3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | nss | 0 |
| Debian:13 | nss | 0 |
| Debian:14 | nss | 0 |
Timeline
- May 27, 2021 CVE Published
- Oct 26, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
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vulnetix vdb fixes DEBIAN-CVE-2020-12403Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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