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Red Hat: CVE-2020-36242: CVE-2020-36242 python-cryptography: Large inputs for symmetric encryption can trigger integer overflow leading to buffer overflow (Multiple Advisories)

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Red Hat: CVE-2020-36242: CVE-2020-36242 python-cryptography: Large inputs for symmetric encryption can trigger integer overflow leading to buffer overflow (Multiple Advisories)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
02/07/2021
Created
05/21/2021
Added
05/21/2021
Modified
12/15/2023

Description

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.

Solution(s)

  • redhat-upgrade-python-cryptography-debugsource
  • redhat-upgrade-python3-cryptography
  • redhat-upgrade-python3-cryptography-debuginfo

References

  • CVE-2020-36242
  • RHSA-2021:1608

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