CVE-2021-40839

Name
CVE-2021-40839
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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://github.com/aresch/rencode/pull/29
MISC https://pypi.org/project/rencode/#history
MISC https://seclists.org/fulldisclosure/2021/Sep/16
MISC https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75
CONFIRM https://security.netapp.com/advisory/ntap-20211008-0001/
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:rencode_project:rencode:*:*:*:*:*:python:*:* py3-rencode >= None <= 1.0.6

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
py3-rencode 3.14-community 1.0.6-r5 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
py3-rencode 3.15-community 1.0.6-r5 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
py3-rencode 3.16-community 1.0.6-r6 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
py3-rencode 3.17-community 1.0.6-r7 Francesco Colista <fcolista@alpinelinux.org> fixed
py3-rencode 3.18-community 1.0.6-r10 Francesco Colista <fcolista@alpinelinux.org> fixed
py3-rencode 3.19-community 1.0.6-r10 Francesco Colista <fcolista@alpinelinux.org> fixed
py3-rencode edge-community 1.0.6-r11 Francesco Colista <fcolista@alpinelinux.org> fixed
py3-rencode 3.20-community 1.0.6-r11 Francesco Colista <fcolista@alpinelinux.org> fixed