Bug 1609642 (CVE-2018-14851) - CVE-2018-14851 php: exif: Buffer over-read in exif_process_IFD_in_MAKERNOTE()
Summary: CVE-2018-14851 php: exif: Buffer over-read in exif_process_IFD_in_MAKERNOTE()
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-14851
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1610186 1610187 1611758 1611759 1611760
Blocks: 1609640
TreeView+ depends on / blocked
 
Reported: 2018-07-30 05:36 UTC by Sam Fowler
Modified: 2021-12-10 16:48 UTC (History)
7 users (show)

Fixed In Version: php 5.6.37, php 7.0.31, php 7.1.20, php 7.2.8
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Clone Of:
Environment:
Last Closed: 2019-08-19 08:47:21 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:2519 0 None None None 2019-08-19 08:42:30 UTC

Description Sam Fowler 2018-07-30 05:36:59 UTC 
PHP before versions 5.6.37, 7.0.31, 7.1.20 and 7.2.8 is vulnerable to a heap-based buffer overflow in the exif.c:exif_process_IFD_in_MAKERNOTE() function. An attacker could exploit this to cause a denial of service via crafted file.


Upstream Bug:

https://bugs.php.net/bug.php?id=76557


Upstream Patch:

http://git.php.net/?p=php-src.git;a=commit;h=3462efa386f26d343062094514af604c29e3edce
Comment 2 Sam Fowler 2018-07-31 07:14:57 UTC 
Created php tracking bugs for this issue:

Affects: fedora-all [bug 1610186]
Comment 4 Tomas Hoger 2018-08-02 16:30:31 UTC 
This is an out-of-bounds read issue, that can possibly lead to crash or limited memory disclosure.
Comment 5 Tomas Hoger 2018-08-02 16:33:46 UTC 
For deployments that do not require the use of Exif extension, you can consult bug 1609637 comment 6 for tips on how to prevent accidental use.
Comment 8 errata-xmlrpc 2019-08-19 08:42:29 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 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2019:2519 https://access.redhat.com/errata/RHSA-2019:2519
Comment 9 Product Security DevOps Team 2019-08-19 08:47:21 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-2018-14851
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