VDB
ALPINE-CVE-2017-7890
ALPINE-CVE-2017-7890
PUBLISHED
CVSS 6.5 MEDIUM
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.
Risk Scores
CVSS v3.0
6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.6 | gd | 2.2.3-r0, 2.2.1-r0, 2.1.1-r0 |
| Alpine:v3.4 | gd | 2.0.36, 0, 2.0.35-r0 |
| Alpine:v3.5 | gd | 2.0.35-r0, 2.2.4-r0, 2.2.3-r1 |
Timeline
- Aug 2, 2017 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch