9.1
CVE-2020-36242
- EPSS 1.27%
- Veröffentlicht 07.02.2021 20:15:12
- Zuletzt bearbeitet 21.11.2024 05:29:08
- Quelle cve@mitre.org
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In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cryptography.Io ≫ Cryptography SwPlatformpython Version < 3.3.2
Fedoraproject ≫ Fedora Version33
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.27% | 0.788 |
| Quelle | 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-190 Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.