vulnerability
Red Hat: CVE-2017-7890: Moderate: php security update (RHSA-2018:0406)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | Aug 2, 2017 | Mar 7, 2018 | Feb 19, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Aug 2, 2017
Added
Mar 7, 2018
Modified
Feb 19, 2026
Description
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.
Solutions
redhat-upgrade-phpredhat-upgrade-php-bcmathredhat-upgrade-php-cliredhat-upgrade-php-commonredhat-upgrade-php-dbaredhat-upgrade-php-debuginforedhat-upgrade-php-develredhat-upgrade-php-embeddedredhat-upgrade-php-enchantredhat-upgrade-php-fpmredhat-upgrade-php-gdredhat-upgrade-php-intlredhat-upgrade-php-ldapredhat-upgrade-php-mbstringredhat-upgrade-php-mysqlredhat-upgrade-php-mysqlndredhat-upgrade-php-odbcredhat-upgrade-php-pdoredhat-upgrade-php-pgsqlredhat-upgrade-php-processredhat-upgrade-php-pspellredhat-upgrade-php-recoderedhat-upgrade-php-snmpredhat-upgrade-php-soapredhat-upgrade-php-xmlredhat-upgrade-php-xmlrpc
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.