CVE-2019-20907
HIGH7.5EPSS 0.32%python3.5 - security update
Published: 7/13/2020Modified: 4/28/2026
Description
In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.
Affected packages (5)
- Alpine/python3from 0, < 3.8.5-r0
- Debian/pypy3from 0, < 7.3.3+dfsg-1
- Debian/python2.7from 0, < 2.7.18-2
- Debian/python3.5from 0, < 3.5.3-1+deb9u3
- Debian/python3.9from 0, < 3.9.0~b5-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |