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CVE-2020-7062

nvd nist
Published: Feb 27, 2020Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

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.

Affected (12)

Products: Php: Php · Opensuse: Leap · Debian: Debian Linux · +1 more
Show all products
Php: Php · Opensuse: Leap · Debian: Debian Linux · Canonical: Ubuntu Linux
Php
1 product
Php
Opensuse
1 product
Leap
Debian
1 product
Debian Linux
Canonical
1 product
Ubuntu Linux
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Php
Php
From 7.2.0 to 7.2.27
Php
From 7.3.0 to 7.3.14
Php
From 7.4.0 to 7.4.2
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Leap
Version 15.1
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 10.0
Debian Linux
Version 8.0
Debian Linux
Version 9.0
Configuration D
5 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 12.04
Ubuntu Linux
Version 14.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 18.04
Ubuntu Linux
Version 19.10

Related CWEs

CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.

References (16)

Source: security@php.net
Mailing ListThird Party Advisory
Source: security@php.net
ExploitVendor Advisory
Source: security@php.net
Mailing ListThird Party Advisory
Source: security@php.net
Third Party Advisory
Source: security@php.net
Third Party Advisory
Source: security@php.net
Third Party Advisory
Source: security@php.net
Third Party Advisory
Source: security@php.net
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

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