CVE-2017-7890

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Source
https://cve.org/CVERecord?id=CVE-2017-7890
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-7890.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2017-7890
Downstream
Related
Published
2017-08-02T19:29:00.897Z
Modified
2026-02-11T14:01:32.284267Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

The GIF decoding function gdImageCreateFromGifCtx in gdgifin.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

Affected packages

Git / github.com/php/php-src

Affected ranges

Type
GIT
Repo
https://github.com/php/php-src
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
195427c55481d9913ac9dd3fbcedf2f7c637e6de

Affected versions

Other
NEWS
NEWS-cvs2svn
php-5.*
php-5.3.23RC1
php-5.3.29
php-5.3.29RC1
php-5.4.30RC1
php-5.4.32RC1
php-5.4.4RC2
php-5.5.24RC1
php-5.6.18RC1
php-5.6.19RC1
php-5.6.22RC1
php-5.6.23RC1
php-5.6.24RC1
php-5.6.30
php-5.6.30RC1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-7890.json"