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Fencer Intel
high 7.5

CVE-2020-7062 json

Null Pointer Dereference in PHP Session Upload Progress

published 6y ago modified 2mo ago also BIT-libphp-2020-7062 , BIT-php-2020-7062 , BIT-php-min-2020-7062 , EUVD-2020-28196

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami libphp 7.2.28, 7.3.15, 7.4.3
  • bitnami php 7.2.28, 7.3.15, 7.4.3
  • bitnami php-min 7.2.28, 7.3.15, 7.4.3
  • PHP Group PHP 7.2.28, 7.3.15, 7.4.3
  • php7.4 Debian 11 7.4.3-1

debian advisories DEBIAN-CVE-2020-7062

  • php7.0 Ubuntu 16.04 LTS 7.0.33-0ubuntu0.16.04.14
  • php7.2 Ubuntu 18.04 LTS 7.2.24-0ubuntu0.18.04.4
  • php5 Ubuntu Pro 14.04 LTS 5.5.9+dfsg-1ubuntu4.29+esm11

ubuntu advisories UBUNTU-CVE-2020-7062

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • libzip RHEL 8 1.5.2-1.module+el8.1.0+3189+a1bff096
  • php-gd RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-cli RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-dba RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-dbg RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-fpm RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef
  • php-gmp RHEL 8 7.3.20-1.module+el8.2.0+7373+b272fdef

red hat advisories RHSA-2020:3662RHSA-2020:5275

  • php7 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +8 more 7.2.34-150000.4.103.1
  • php5 SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 5.5.14-109.71.1
  • php72 SLE Software Development Kit 12 SP5, SLE Software Development Kit 12 SP4, SLE Module for Web and Scripting 12 7.2.5-1.40.1
  • php7 SLES for SAP 15, SLES 15-LTSS, SLE Module for Web and Scripting 15 SP1 +2 more 7.2.5-4.52.4

suse advisories SUSE-SU-2022:4067-1SUSE-SU-2020:0658-1SUSE-SU-2020:0647-1SUSE-SU-2020:0622-1

  • php7 openSUSE Tumbleweed 7.4.24-1.1
  • php8 openSUSE Tumbleweed 8.0.11-1.1
  • php7 openSUSE Leap 15.1 7.2.5-lp151.6.22.1
  • php7-test openSUSE Leap 15.1 7.2.5-lp151.6.22.1

opensuse advisories openSUSE-SU-2024:11167-1openSUSE-SU-2024:11169-1openSUSE-SU-2020:0341-1

  • php AlmaLinux 8 7.3.20-1.module_el8.4.0+2229+b272fdef
  • php AlmaLinux 8 7.3.20-1.module_el8.5.0+152+112d3b8c
  • php AlmaLinux 8 7.3.20-1.module_el8.3.0+2009+b272fdef
  • libzip AlmaLinux 8 1.5.2-1.module_el8.5.0+152+112d3b8c
  • libzip AlmaLinux 8 1.5.2-1.module_el8.3.0+2009+b272fdef
  • libzip AlmaLinux 8 1.5.2-1.module_el8.4.0+2229+b272fdef
  • php-gd AlmaLinux 8 7.3.20-1.module_el8.4.0+2229+b272fdef
  • php-gd AlmaLinux 8 7.3.20-1.module_el8.3.0+2009+b272fdef

almalinux advisories ALSA-2020:3662

  • php Rocky Linux 8 7.3.20-1.module+el8.4.0+414+2e7afcdd
  • libzip Rocky Linux 8 1.5.2-1.module+el8.4.0+414+2e7afcdd
  • php-pear Rocky Linux 8 1:1.10.9-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-rrd Rocky Linux 8 2.0.1-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-zip Rocky Linux 8 1.15.4-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-apcu Rocky Linux 8 5.1.17-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-xdebug Rocky Linux 8 2.8.0-1.module+el8.4.0+414+2e7afcdd

rocky linux advisories RLSA-2020:3662

  • php7 Alpine 3.15, Alpine 3.14, Alpine 3.13 +2 more 7.3.15-r0
  • php7 Alpine 3.9 7.2.31-r0

alpine advisories ALPINE-CVE-2020-7062

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-7062 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7062 updated cvss 7.5

php: NULL pointer dereference in PHP session upload progress

  • Red Hat Enterprise Linux 5 php, php53 Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more Red Hat Enterprise Linux 8 php, libzip, php-gd, php-cli, php-dba, php-dbg, +30 more Red Hat Software Collections rh-php72-php, rh-php72-php-gd, rh-php72-php-cli, rh-php72-php-dba, rh-php72-php-dbg, rh-php72-php-fpm, +22 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) php 7.3.20-1.module+el8.2.0+7373+b272fdef, libzip 1.5.2-1.module+el8.1.0+3189+a1bff096, php-gd 7.3.20-1.module+el8.2.0+7373+b272fdef, php-cli 7.3.20-1.module+el8.2.0+7373+b272fdef, php-dba 7.3.20-1.module+el8.2.0+7373+b272fdef, php-dbg 7.3.20-1.module+el8.2.0+7373+b272fdef, +28 more
    fixed: vendor fix RHSA-2020:3662
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php73-php 7.3.20-1.el7, rh-php73-php-gd 7.3.20-1.el7, rh-php73-php-cli 7.3.20-1.el7, rh-php73-php-dba 7.3.20-1.el7, rh-php73-php-dbg 7.3.20-1.el7, rh-php73-php-fpm 7.3.20-1.el7, +22 more
    fixed: vendor fix RHSA-2020:5275

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-027-02 updated cvss 7.5

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

3.58% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.php.net https://bugs.php.net/bug.php?id=79221 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami libphp
>=7.2.0, <7.2.28
>=7.3.0, <7.3.15
>=7.4.0, <7.4.3
7.2.28
7.3.15
7.4.3
bitnami php
>=7.2.0, <7.2.28
>=7.3.0, <7.3.15
>=7.4.0, <7.4.3
7.2.28
7.3.15
7.4.3
bitnami php-min
>=7.2.0, <7.2.28
>=7.3.0, <7.3.15
>=7.4.0, <7.4.3
7.2.28
7.3.15
7.4.3

Affected products

  • PHP Group PHP

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.