Bug 1820601 (CVE-2020-7064)

Summary: CVE-2020-7064 php: Information disclosure in exif_read_data() function
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: fedora, hhorak, jorton, kyoshida, nduffy, rcollet, security-response-team, tcrider, webstack-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: php 7.2.9, php 7.3.16, php 7.4.4 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-09-08 13:19:05 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1820602, 1821136, 1821137, 1821138, 1821139, 1857714    
Bug Blocks: 1820607    

Description Dhananjay Arunesh 2020-04-03 12:45:57 UTC 
A vulnerability was found in PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.
Comment 1 Dhananjay Arunesh 2020-04-03 12:46:26 UTC 
Created php tracking bugs for this issue:

Affects: fedora-all [bug 1820602]
Comment 2 Dhananjay Arunesh 2020-04-03 12:46:49 UTC 
External References:

https://bugs.php.net/bug.php?id=79282
Comment 3 Huzaifa S. Sidhpurwala 2020-04-06 07:09:29 UTC 
Upstream patch: http://git.php.net/?p=php-src.git;a=commit;h=0c77b4307df73217283a4aaf9313e1a33a0967ff
Comment 9 errata-xmlrpc 2020-09-08 09:47:22 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 10 Product Security DevOps Team 2020-09-08 13:19:05 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-2020-7064
Comment 11 errata-xmlrpc 2020-12-01 12:03:19 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