PT-2016-3143 · Gd+3 · Gd Graphics Library+3

Published 2016-10-14 · Updated 2017-11-04 · CVE-2016-8670

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions GD Graphics Library versions prior to 2.2.4 PHP versions prior to 5.6.28 and 7.x prior to 7.0.13

Description The issue is caused by an integer signedness error in the dynamicGetbuf function in gd io dp.c of the GD Graphics Library. This error leads to a stack-based buffer overflow. Exploitation of this issue may allow a remote attacker to cause a denial of service or possibly have other unspecified impacts via a specially crafted imagecreatefromstring call.

Recommendations For GD Graphics Library versions prior to 2.2.4, update to version 2.2.4 or later to resolve the issue. For PHP versions prior to 5.6.28, update to version 5.6.28 or later to resolve the issue. For PHP 7.x versions prior to 7.0.13, update to version 7.0.13 or later to resolve the issue. As a temporary workaround, consider restricting the use of the imagecreatefromstring function until a patch is available.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2017-01656

CVE-2016-8670

DLA-665-1

DSA-3693-1

MGASA-2016-0421

OPENSUSE-SU-2016_2606-1

OPENSUSE-SU-2016_2772-1

OPENSUSE-SU-2016_2831-1

OPENSUSE-SU-2016_2837-1

SUSE-SU-2016:2668-1

SUSE-SU-2016:2670-1

SUSE-SU-2016:2681-1

SUSE-SU-2016:2683-1

SUSE-SU-2016:2683-2

SUSE-SU-2016:2766-1

USN-3117-1

Affected Products

Gd Graphics Library

Php

Suse

Ubuntu

References · 43

• https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7568 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2683-2 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3117-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2683-1 · Vendor Advisory
• http://php.net/ChangeLog-7.php · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-8670 · Security Note
• http://php.net/ChangeLog-5.php · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2681-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-8670 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2766-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3117-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3693-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-8670 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2016-0421 · Vendor Advisory