Bug 1808532 (CVE-2020-7062) - CVE-2020-7062 php: NULL pointer dereference in PHP session upload progress
Summary: CVE-2020-7062 php: NULL pointer dereference in PHP session upload progress
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-7062
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1808533 1810225 1810226 1810227 1810228 1810229 1857711
Blocks: 1808539
TreeView+ depends on / blocked
 
Reported: 2020-02-28 18:19 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-12-15 17:25 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2020-09-08 13:18:58 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:3662 0 None None None 2020-09-08 09:47:16 UTC
Red Hat Product Errata RHSA-2020:5275 0 None None None 2020-12-01 12:03:14 UTC

Description Guilherme de Almeida Suckevicz 2020-02-28 18:19:40 UTC 
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.

Reference:
https://bugs.php.net/bug.php?id=79221
Comment 1 Guilherme de Almeida Suckevicz 2020-02-28 18:20:00 UTC 
Created php tracking bugs for this issue:

Affects: fedora-all [bug 1808533]
Comment 2 Marco Benatto 2020-03-04 18:23:57 UTC 
Upstream commit for this issue:
http://git.php.net/?p=php-src.git;a=commit;h=d76f7c6c636b8240e06a1fa29eebb98ad005008a
Comment 4 errata-xmlrpc 2020-09-08 09:47:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:3662 https://access.redhat.com/errata/RHSA-2020:3662
Comment 5 Product Security DevOps Team 2020-09-08 13:18:58 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-7062
Comment 8 errata-xmlrpc 2020-12-01 12:03:12 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS

Via RHSA-2020:5275 https://access.redhat.com/errata/RHSA-2020:5275
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