9.1
CVE-2020-12403
- EPSS 0.19%
- Published 27.05.2021 19:15:07
- Last modified 21.11.2024 04:59:38
- Source security@mozilla.org
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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.
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.19% | 0.413 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 9.1 | 3.9 | 5.2 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
|
| nvd@nist.gov | 6.4 | 10 | 4.9 |
AV:N/AC:L/Au:N/C:P/I:N/A:P
|
CWE-125 Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.