The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.
References
Link | Resource |
---|---|
http://php.net/ChangeLog-5.php | Release Notes Vendor Advisory |
http://php.net/ChangeLog-7.php | Release Notes Vendor Advisory |
http://www.debian.org/security/2017/dsa-3938 | |
http://www.securityfocus.com/bid/99492 | Third Party Advisory VDB Entry |
https://access.redhat.com/errata/RHSA-2018:0406 | |
https://access.redhat.com/errata/RHSA-2018:1296 | |
https://bugs.php.net/bug.php?id=74435 | Patch Vendor Advisory |
https://bugs.php.net/patch-display.php?bug=74435&patch=fix-74435-php-7.0&revision=1497970038 | Issue Tracking Patch Vendor Advisory |
https://security.netapp.com/advisory/ntap-20180112-0001/ | |
https://www.tenable.com/security/tns-2017-12 |
Configurations
Configuration 1 (hide)
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History
No history.
Information
Published : 2017-08-02 19:29
Updated : 2024-02-28 16:04
NVD link : CVE-2017-7890
Mitre link : CVE-2017-7890
CVE.ORG link : CVE-2017-7890
JSON object : View
Products Affected
php
- php
CWE
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor