UBUNTU-CVE-2019-20907

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2019-20907
Published: 13 Jul 2020, 13:15
Last modified:22 Apr 2026, 12:17

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Jul 2020, 13:15
Published
Vulnerability first disclosed
22 Apr 2026, 12:17
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•python2.7

    < 2.7.6-8ubuntu0.6+esm6 | < 2.7.12-1ubuntu0~16.04.12 | < 2.7.17-1~18.04ubuntu1.1 | < 2.7.18-1~20.04.1

  • ubuntu•python3.4

    < 3.4.3-1ubuntu1~14.04.7+esm7

  • ubuntu•python3.5

    < 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1 | < 3.5.2-2ubuntu0~16.04.11

  • ubuntu•python3.6

    < 3.6.9-1~18.04ubuntu1.1

  • ubuntu•python3.7

    < 3.7.5-2ubuntu1~18.04.2+esm3

  • ubuntu•python3.8

    < 3.8.0-3ubuntu1~18.04.2+esm2 | < 3.8.2-1ubuntu1.2

References (7)