GHSA-rhm9-p9w5-fwm7
Suggest an improvement- Source
- https://github.com/advisories/GHSA-rhm9-p9w5-fwm7
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/02/GHSA-rhm9-p9w5-fwm7/GHSA-rhm9-p9w5-fwm7.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-rhm9-p9w5-fwm7
- Aliases
- Published
- 2021-02-10T01:32:27Z
- Modified
- 2024-09-13T18:46:20.606175Z
- 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
- 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- PyCA Cryptography symmetrically encrypting large values can lead to integer overflow
- Details
-
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. When certain sequences of
update()calls with large values (multiple GBs) for symetric encryption or decryption occur, it's possible for an integer overflow to happen, leading to mishandling of buffers. This is patched in version 3.3.2 and newer. - References
-
- https://github.com/pyca/cryptography/security/advisories/GHSA-rhm9-p9w5-fwm7
- https://nvd.nist.gov/vuln/detail/CVE-2020-36242
- https://github.com/pyca/cryptography/issues/5615
- https://github.com/pyca/cryptography/commit/82b6ce28389f0a317bc55ba2091a74b346db7cae
- https://github.com/advisories/GHSA-rhm9-p9w5-fwm7
- https://github.com/pyca/cryptography
- https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst
- https://github.com/pyca/cryptography/compare/3.3.1...3.3.2
- https://github.com/pypa/advisory-database/tree/main/vulns/cryptography/PYSEC-2021-63.yaml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7RGQLK4J5ZQFRLKCHVVG6BKZTUQMG7E
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
Affected packages
PyPI / cryptography
Package
- Name
- cryptography
- View open source insights on deps.dev
- Purl
- pkg:pypi/cryptography