- Issued:
- 2021-05-18
- Updated:
- 2021-05-18
RHSA-2021:1608 - Moderate: python-cryptography security, bug fix, and enhancement update
Synopsis
Moderate: python-cryptography security, bug fix, and enhancement update
Type/Severity
Security Advisory Moderate
Topic
An update for python-cryptography is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The python-cryptography packages contain a Python Cryptographic Authority's (PyCA's) cryptography library, which provides cryptographic primitives and recipes to Python developers.
The following packages have been upgraded to a later upstream version: python-cryptography (3.2.1). (BZ#1873581, BZ#1891947)
Security Fix(es):
-
python-cryptography: bleichenbacher timing oracle attack against RSA decryption (CVE-2020-25659)
-
python-cryptography: certain sequences of update() calls when symmetrically encrypting very large payloads could result in an integer overflow and lead to buffer overflows (CVE-2020-36242)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 | 8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Life Cycle | 8.10 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.6 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.4 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle | 8.10 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.4 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle | 8.10 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.6 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.4 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle | 8.10 | aarch64 |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.8 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.6 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.4 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 8.8 | x86_64 |
| Red Hat Enterprise Linux Server - TUS | 8.6 | x86_64 |
| Red Hat Enterprise Linux Server - TUS | 8.4 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 8.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 8.4 | x86_64 |
Updated Packages
- python3-cryptography-3.2.1-4.el8.aarch64.rpm
- python3-cryptography-3.2.1-4.el8.s390x.rpm
- python-cryptography-debugsource-3.2.1-4.el8.s390x.rpm
- python3-cryptography-debuginfo-3.2.1-4.el8.x86_64.rpm
- python3-cryptography-debuginfo-3.2.1-4.el8.aarch64.rpm
- python-cryptography-debugsource-3.2.1-4.el8.ppc64le.rpm
- python3-cryptography-3.2.1-4.el8.ppc64le.rpm
- python-cryptography-3.2.1-4.el8.src.rpm
- python-cryptography-debugsource-3.2.1-4.el8.aarch64.rpm
- python3-cryptography-debuginfo-3.2.1-4.el8.ppc64le.rpm
- python-cryptography-debugsource-3.2.1-4.el8.x86_64.rpm
- python3-cryptography-debuginfo-3.2.1-4.el8.s390x.rpm
- python3-cryptography-3.2.1-4.el8.x86_64.rpm
Fixes
- This content is not included.BZ - 1778939
- This content is not included.BZ - 1873581
- This content is not included.BZ - 1889988
- This content is not included.BZ - 1891947
- This content is not included.BZ - 1907429
- This content is not included.BZ - 1926226
CVEs
References
- https://access.redhat.com/security/updates/classification/#moderate
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.