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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.2.5-1 |
| sid | Fixed | 2.2.5-1 |
| forky | Fixed | 2.2.5-1 |
| bullseye | Fixed | 2.2.5-1 |
| bookworm | Fixed | 2.2.5-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| php | php | {"endIncluding":"5.6.30"} | |
| php | php | 7.0.0 | |
| php | php | 7.0.1 | |
| php | php | 7.0.2 | |
| php | php | 7.0.3 | |
| php | php | 7.0.4 | |
| php | php | 7.0.5 | |
| php | php | 7.0.6 | |
| php | php | 7.0.7 | |
| php | php | 7.0.8 | |
| php | php | 7.0.9 | |
| php | php | 7.0.10 | |
| php | php | 7.0.11 | |
| php | php | 7.0.12 | |
| php | php | 7.0.13 | |
| php | php | 7.0.14 | |
| php | php | 7.0.15 | |
| php | php | 7.0.16 | |
| php | php | 7.0.17 | |
| php | php | 7.0.18 | |
| php | php | 7.0.19 | |
| php | php | 7.0.20 | |
| php | php | 7.1.0 | |
| php | php | 7.1.1 | |
| php | php | 7.1.2 | |
| php | php | 7.1.3 | |
| php | php | 7.1.4 | |
| php | php | 7.1.5 | |
| php | php | 7.1.6 | |
References
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- http://www.debian.org/security/2017/dsa-3938
- http://www.securityfocus.com/bid/99492
- https://access.redhat.com/errata/RHSA-2018:0406
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=74435
- https://bugs.php.net/patch-display.php?bug=74435&patch=fix-74435-php-7.0&revision=1497970038
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.tenable.com/security/tns-2017-12
- https://www.suse.com/security/cve/CVE-2017-7890.html
- https://security-tracker.debian.org/tracker/CVE-2017-7890
CWEs
CWE-200
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.