CVE-2017-7890
The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP
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.
MEDIUM · CVSS 6.5
EPSS 0.30217
Schedule remediation
- EPSS ≥ 0.10 - elevated exploitation probability
- EPSS percentile: top 3% of all CVEs by exploitation likelihood
Sigma rules0
YARA rules0