CVE Vulnerability

CVE-2021-40839

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;x2fx7f), enabling a remote attack that consumes CPU and memory.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/aresch/rencode/pull/29 Patch Third Party Advisory
https://pypi.org/project/rencode/#history Third Party Advisory
https://seclists.org/fulldisclosure/2021/Sep/16 Mailing List Third Party Advisory
https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75 Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20211008-0001/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/ Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:rencode_project:rencode:*:*:*:*:*:python:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Information

Published : 2021-09-10 02:15

Updated : 2022-02-22 02:48

NVD link : CVE-2021-40839

Mitre link : CVE-2021-40839

Products Affected
No products.
CWE
CWE-835