CVE-2020-7062

Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 27 Feb 2020, 20:25
Last modified:16 Sept 2024, 22:24

Vulnerability Summary

Overall Risk (default)
medium
40/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
1.21% LOW
1% probability +0.06%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

27 Feb 2020, 20:25
Published
Vulnerability first disclosed
16 Sept 2024, 22:24
Last Modified
Vulnerability information updated

Description

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.

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: 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 1.21%• Percentile: 79%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04 | 16.04 | 18.04 | 19.10

  • debian•debian_linux

    8.0 | 9.0 | 10.0

  • opensuse•leap

    15.1

  • Unknown•PHP

    ≥ 7.3.x, < 7.3.15 | ≥ 7.4.x, < 7.4.3 | ≥ 7.2.x, < 7.2.28

  • Unknown•PHP

    ≥ 7.2.0, ≤ 7.2.27 | ≥ 7.3.0, ≤ 7.3.14 | ≥ 7.4.0, ≤ 7.4.2

References (8)