CVE-2023-6681: Jwcrypto: denail of service via specifically crafted jwe
First published: Thu Dec 28 2023(Updated: )
### Impact Denial of Service, Applications that allow the use of the PBKDF2 algorithm. ### Patches A [patch](https://github.com/latchset/jwcrypto/commit/d2655d370586cb830e49acfb450f87598da60be8) is available that sets the maximum number of default rounds. ### Workarounds Applications that do not need to use PBKDF2 should simply specify the algorithms use and exclude it from the list. Applications that need to use the algorithm should upgrade to the new version that allows to set a maximum rounds number. ### Acknowledgement The issues was reported by Jingcheng Yang and Jianjun Chen from Sichuan University and Zhongguancun Lab
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/jwcrypto | <1.5.1 | 1.5.1 |
| redhat/jwcrypto | <1.5.1 | 1.5.1 |
| jwcrypto | <1.5.1 | |
| Fedora | =38 | |
| Fedora | =39 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux | =9.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux for IBM Z Systems | =8.0 | |
| Red Hat Enterprise Linux for Power, little endian | =8.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2263861
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2263862
- https://access.redhat.com/errata/RHSA-2024:3267
- https://bugzilla.redhat.com/show_bug.cgi?id=2260843
- https://access.redhat.com/security/cve/CVE-2023-6681
- https://github.com/latchset/jwcrypto/security/advisories/GHSA-cw2r-4p82-qv79
- https://github.com/latchset/jwcrypto/commit/d2655d370586cb830e49acfb450f87598da60be8
- https://nvd.nist.gov/vuln/detail/CVE-2023-6681
- https://github.com/pypa/advisory-database/tree/main/vulns/jwcrypto/PYSEC-2024-104.yaml
- https://github.com/advisories/GHSA-cw2r-4p82-qv79 (Advisory)
- https://access.redhat.com/errata/RHSA-2024:9281
Frequently Asked Questions
What is the severity of CVE-2023-6681?
CVE-2023-6681 has been categorized with a severity rating associated with Denial of Service vulnerabilities.
How do I fix CVE-2023-6681?
To fix CVE-2023-6681, you should update to jwcrypto version 1.5.1 or apply the available patch that sets the maximum number of default rounds.
Which software versions are affected by CVE-2023-6681?
CVE-2023-6681 affects jwcrypto versions prior to 1.5.1 across various operating systems including Red Hat Enterprise Linux and Fedora.
What type of vulnerability is CVE-2023-6681?
CVE-2023-6681 is a Denial of Service vulnerability that affects applications utilizing the PBKDF2 algorithm.
Are there any workarounds for CVE-2023-6681?
While there are no specific workarounds mentioned for CVE-2023-6681, updating affected software is recommended.
- agent/first-publish-date
- agent/severity
- agent/title
- agent/type
- agent/description
- agent/weakness
- agent/event
- agent/references
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-cw2r-4p82-qv79
- alias/CVE-2023-6681
- agent/software-canonical-lookup
- collector/redhat-bugzilla
- source/Red Hat
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- agent/source
- agent/author
- agent/softwarecombine
- agent/tags
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-api
- package-manager/pip
- package-manager/redhat
- vendor/latchset
- canonical/jwcrypto
- vendor/fedoraproject
- canonical/fedora
- version/fedora/38
- version/fedora/39
- vendor/redhat
- canonical/red hat enterprise linux
- version/red hat enterprise linux/8.0
- version/red hat enterprise linux/9.0
- canonical/red hat enterprise linux for ibm z systems
- version/red hat enterprise linux for ibm z systems/8.0
- canonical/red hat enterprise linux for power, little endian
- version/red hat enterprise linux for power, little endian/8.0