VYPR
Medium severity6.5NVD Advisory· Published Aug 2, 2017· Updated Jun 17, 2026

CVE-2017-7890

CVE-2017-7890

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

48

Patches

Vulnerability mechanics

References

10

News mentions

0

No linked articles in our index yet.