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Status published
High
CVE-2021-40839
The rencode package through 1.0.6 for Python allows an infinite...
Vulnerability Description
The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/aresch/rencode/pull/29
- https://seclists.org/fulldisclosure/2021/Sep/16
- https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75
- https://pypi.org/project/rencode/#history
- https://security.netapp.com/advisory/ntap-20211008-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/
Affected Vendor
rencode project
View all reports →Affected Software
rencode, fedora
Vulnerable Versions:
0, 34, 35
Timeline
Official Publish:
September 10th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.