CVE-2021-40839
HIGH 8.7EPSS 5.5%
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.
- CVSS v4.0 GitHub
- 8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P - EPSS
- 5.52% chance of exploitation in the next 30 days, 93rd percentile
- Published
- 2021-09-10
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
- itlabbet/CVE-2021-408391★ · 2021-12-13
Security advisories
- aresch/rencode/pull/29
- https://pypi.org/project/rencode/#history
- https://seclists.org/fulldisclosure/2021/Sep/16
- https://security.netapp.com/advisory/ntap-20211008-0001
- advisories/GHSA-gh8j-2pgf-x458