CVE-2016-8670

Apple Security Advisory 2017-01-23-2

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Integer 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 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted imagecreatefromstring call.

Error de firma de enteros en la función dynamicGetbuf en gd_io_dp.c en la librería de gráficos GD (también conocido como libgd) hasta la versión 2.2.3 como se utiliza en PHP en versiones anteriores a 5.6.28 y 7.x en versiones anteriores a 7.0.13 permite a atacantes remotos provocar una denegación de servicio (desbordamiento de búfer basado en pila) o posiblemente tener otro impacto no especificado a través de una llamada manipulada imagecreatefromstring.

Ibrahim El-Sayed discovered that the GD library incorrectly handled certain malformed Tiff images. If a user or automated system were tricked into processing a specially crafted Tiff image, an attacker could cause a denial of service. Ke Liu discovered that the GD library incorrectly handled certain integers when processing WebP images. If a user or automated system were tricked into processing a specially crafted WebP image, an attacker could cause a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-10-15 CVE Reserved
2016-11-01 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/10/15/1	Mailing List
http://www.securityfocus.com/bid/93594	Vdb Entry
https://support.f5.com/csp/article/K21336065?utm_source=f5support&amp%3Butm_medium=RSS	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3693	2023-11-07
http://www.php.net/ChangeLog-5.php	2023-11-07
http://www.php.net/ChangeLog-7.php	2023-11-07
https://bugs.php.net/bug.php?id=73280	2023-11-07
https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	<= 5.6.27 Search vendor "Php" for product "Php" and version " <= 5.6.27"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.0 Search vendor "Php" for product "Php" and version "7.0.0"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.1 Search vendor "Php" for product "Php" and version "7.0.1"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.2 Search vendor "Php" for product "Php" and version "7.0.2"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.3 Search vendor "Php" for product "Php" and version "7.0.3"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.4 Search vendor "Php" for product "Php" and version "7.0.4"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.5 Search vendor "Php" for product "Php" and version "7.0.5"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.6 Search vendor "Php" for product "Php" and version "7.0.6"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.7 Search vendor "Php" for product "Php" and version "7.0.7"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.8 Search vendor "Php" for product "Php" and version "7.0.8"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.9 Search vendor "Php" for product "Php" and version "7.0.9"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.10 Search vendor "Php" for product "Php" and version "7.0.10"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.11 Search vendor "Php" for product "Php" and version "7.0.11"	-	Safe
Libgd Search vendor "Libgd"	Libgd Search vendor "Libgd" for product "Libgd"	<= 2.2.3 Search vendor "Libgd" for product "Libgd" and version " <= 2.2.3"	-	Affected	in	Php Search vendor "Php"	Php Search vendor "Php" for product "Php"	7.0.12 Search vendor "Php" for product "Php" and version "7.0.12"	-	Safe