ALPINE-CVE-2020-36242

Source
https://security.alpinelinux.org/vuln/CVE-2020-36242
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2020-36242.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALPINE-CVE-2020-36242
Upstream
Published
2021-02-07T20:15:12Z
Modified
2025-09-26T00:16:35.180755Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Alpine:v3.13 / py3-cryptography

Package

Name
py3-cryptography
Purl
pkg:apk/alpine/py3-cryptography?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.2-r0

Affected versions

0.*

0.6.1-r0
0.8.2-r0

1.*

1.0.2-r0
1.3.1-r0
1.3.2-r0
1.4-r0
1.4-r1
1.4-r2
1.5.2-r0
1.5.2-r1
1.5.3-r0
1.7.2-r0
1.7.2-r1
1.8.1-r0
1.8.1-r1
1.9-r0

2.*

2.0.2-r0
2.0.3-r0
2.0.3-r1
2.1.3-r0
2.1.4-r0
2.1.4-r1
2.2.2-r0
2.3.1-r0
2.3.1-r1
2.4.2-r0
2.4.2-r1
2.4.2-r2
2.5-r0
2.6.1-r0
2.6.1-r1
2.7-r0
2.7-r1
2.8-r0
2.8-r1
2.9-r0
2.9.2-r0

3.*

3.2.1-r0
3.3-r0
3.3.1-r0