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Vulnerability record · CVE-2016-10166 · published 15 March 2017

CVE-2016-10166: Libgd vulnerability

Libgd · Libgd

Integer underflow in the _gdContributionsAlloc function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via vectors related to decrementing the u variable.

9.8 CVSS 3.0 Critical EPSS 11% · top 4.3% CWE-191 · CWE-191
9.8CVSS 3.0 base score, v2 7.5
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

Description

Integer underflow in the _gdContributionsAlloc function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via vectors related to decrementing the u variable.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://libgd.github.io/release-2.2.4.html Release NotesVendor Advisory
http://www.debian.org/security/2017/dsa-3777
http://www.openwall.com/lists/oss-security/2017/01/26/1 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/28/6 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/95869 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2019:2519
https://access.redhat.com/errata/RHSA-2019:3299
https://github.com/libgd/libgd/commit/60bfb401ad5a4a8ae995dcd36372fe15c71e1a35 Issue TrackingPatchThird Party Advisory
http://libgd.github.io/release-2.2.4.html Release NotesVendor Advisory
http://www.debian.org/security/2017/dsa-3777
http://www.openwall.com/lists/oss-security/2017/01/26/1 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/28/6 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/95869 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2019:2519
https://access.redhat.com/errata/RHSA-2019:3299
https://github.com/libgd/libgd/commit/60bfb401ad5a4a8ae995dcd36372fe15c71e1a35 Issue TrackingPatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-6978Libgd double free vulnerabilityThe GD Graphics Library (aka LibGD) 2.2.5 has a double free in the gdImage*Ptr() functions in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c. NOTE: PHP is un…EPSS 4.5%9.8CVE-2016-6912Libgd double free vulnerabilityDouble free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecifi…EPSS 4.5%9.8CVE-2016-8670Libgd memory buffer overflow vulnerabilityInteger signedness error in the dynamicGetbuf function in gd_io_dp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP before 5.6.…EPSS 4.8%9.8CVE-2016-7568Libgd integer overflow vulnerabilityInteger overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP through 7.0.11, all…EPSS 5.1%9.8CVE-2016-3074Libgd vulnerabilityInteger signedness error in GD Graphics Library 2.1.1 (aka libgd or libgd2) allows remote attackers to cause a denial of service (crash) or potential…EPSS 37%9.1CVE-2016-5116Libgd memory buffer overflow vulnerabilitygd_xbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent attackers …EPSS 3.8%8.8CVE-2019-6977LibGD gdImageColorMatch heap buffer overflow via PHP imagecolormatchgdImageColorMatch in LibGD 2.2.5, reached through PHP's imagecolormatch function, contains a heap-based buffer overflow (CWE-787 out-of-bounds write)…EPSS 71%analysed8.8CVE-2018-1000222Libgd double free vulnerabilityLibgd version 2.2.5 contains a Double Free Vulnerability vulnerability in gdImageBmpPtr Function that can result in Remote Code Execution . This atta…EPSS 4.2%

Source: NIST National Vulnerability Database (record CVE-2016-10166), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.