CVE-2021-40839

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.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 93%
VendorProductVersion
rencode_projectrencode
𝑥
≤ 1.0.6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-rencode
bullseye
no-dsa
buster
no-dsa
stretch
no-dsa
sid
1.0.6-2
fixed
trixie
1.0.6-2
fixed
bookworm
1.0.6-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-rencode
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
dne
Common Weakness Enumeration
References
https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75
https://github.com/aresch/rencode/pull/29
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/
https://pypi.org/project/rencode/#history
https://seclists.org/fulldisclosure/2021/Sep/16
https://security.netapp.com/advisory/ntap-20211008-0001/
https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75
https://github.com/aresch/rencode/pull/29
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/
https://pypi.org/project/rencode/#history
https://seclists.org/fulldisclosure/2021/Sep/16
https://security.netapp.com/advisory/ntap-20211008-0001/