CVE-2019-20907

Advisory lineage Upstream: 0 Downstream: 47
Modified
Published: 13 Jul 2020, 00:00
Last modified:05 Aug 2024, 02:53

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.32% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Jul 2020, 00:00
Published
Vulnerability first disclosed
05 Aug 2024, 02:53
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
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.32%• Percentile: 56%

Techniques & Countermeasures

  • CWE-835•Loop with Unreachable Exit Condition ('Infinite Loop')

    The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04 | 16.04 | 18.04 | 20.04

  • debian•debian_linux

    9.0

  • fedoraproject•fedora

    31 | 32

  • netapp•active_iq_unified_manager

    ≥ 9.5

  • netapp•cloud_volumes_ontap_mediator

    na

  • opensuse•leap

    15.1 | 15.2

  • oracle•zfs_storage_appliance_kit

    8.8

  • python•python

    ≥ 3.5.0, < 3.5.10 | ≥ 3.6.0, < 3.6.12 | ≥ 3.7.0, < 3.7.9 | ≥ 3.8.0, < 3.8.5

References (27)