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Vulnerability record · CVE-2016-6128 · published 7 August 2016

CVE-2016-6128: Debian linux improper input validation vulnerability

Debian · Debian Linux

The gdImageCropThreshold function in gd_crop.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 7.0.9, allows remote attackers to cause a denial of service (application crash) via an invalid color index.

7.5 CVSS 3.1 High EPSS 6.8% · top 6.2% CWE-20 · Improper input validation
7.5CVSS 3.1 base score, v2 5.0
6.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

Description

The gdImageCropThreshold function in gd_crop.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 7.0.9, allows remote attackers to cause a denial of service (application crash) via an invalid color index.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-updates/2016-08/msg00086.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00078.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3619 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/30/1 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/91509 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036276 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3030-1 Third Party Advisory
https://bugs.php.net/72494 Issue TrackingPermissions Required
https://github.com/libgd/libgd/commit/1ccfe21e14c4d18336f9da8515cd17db88c3de61 Issue TrackingPatchThird Party Advisory
https://github.com/libgd/libgd/commit/6ff72ae40c7c20ece939afb362d98cc37f4a1c96 Issue TrackingThird Party Advisory
https://libgd.github.io/release-2.2.3.html Release NotesThird Party Advisory
https://security.gentoo.org/glsa/201612-09 Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00086.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00078.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3619 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/30/1 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/91509 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036276 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3030-1 Third Party Advisory
https://bugs.php.net/72494 Issue TrackingPermissions Required
https://github.com/libgd/libgd/commit/1ccfe21e14c4d18336f9da8515cd17db88c3de61 Issue TrackingPatchThird Party Advisory
https://github.com/libgd/libgd/commit/6ff72ae40c7c20ece939afb362d98cc37f4a1c96 Issue TrackingThird Party Advisory
https://libgd.github.io/release-2.2.3.html Release NotesThird Party Advisory
https://security.gentoo.org/glsa/201612-09 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-6128), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.