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.

This update for php5 fixes the following security issues :

  - CVE-2016-7568: A specially crafted image file could     cause an application crash or potentially execute     arbitrary code when the image is converted to webp     (bsc#1001900)

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for php7 fixes the following security issue :

  - CVE-2016-7568: A specially crafted image file could     cause an application crash or potentially execute     arbitrary code when the image is converted to webp     (bsc#1001900)

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the gd package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - 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.i1/4^CVE-2016-8670i1/4%0

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the gd package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Heap-based buffer overflow in the horizontalDifference8     function in tif_pixarlog.c in LibTIFF 4.0.6 and earlier     allows remote attackers to cause a denial of service     (crash) or execute arbitrary code via a crafted TIFF     image to tiffcp.(CVE-2016-8670)

  - The gdImageCreate function in the GD Graphics Library     (aka libgd) before 2.2.4 allows remote attackers to     cause a denial of service (system hang) via an     oversized image.(CVE-2016-9317)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A vulnerability was found in gd. Integer underflow in a calculation in dynamicGetbuf() was incorrectly handled, leading in some circumstances to an out of bounds write through a very large argument to memcpy().
An attacker could create a crafted image that would lead to a crash or, potentially, code execution. (CVE-2016-8670)

Use-after-free vulnerability in the CURLFile implementation in ext/curl/curl_file.c in PHP before 5.6.27 allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data that is mishandled during __wakeup processing. (CVE-2016-9137)

Stack consumption vulnerability in the gdImageFillToBorder function in gd.c in the GD Graphics Library (aka libgd) before 2.2.2, as used in PHP before 5.6.28, allows remote attackers to cause a denial of service (segmentation violation) via a crafted imagefilltoborder call that triggers use of a negative color value. (CVE-2016-9933)

ext/wddx/wddx.c in PHP before 5.6.28 allows remote attackers to cause a denial of service (NULL pointer dereference) via crafted serialized data in a wddxPacket XML document, as demonstrated by a PDORow string.
(CVE-2016-9934)

The php_wddx_push_element function in ext/wddx/wddx.c in PHP before 5.6.29 allows remote attackers to cause a denial of service (out-of-bounds read and memory corruption) or possibly have unspecified other impact via an empty boolean element in a wddxPacket XML document. (CVE-2016-9935)

The remote host is running a version of macOS that is 10.12.x prior to 10.12.3. It is, therefore, affected by multiple vulnerabilities in the following components :

  - apache_mod_php
  - Bluetooth
  - Graphics Drivers
  - Help Viewer
  - IOAudioFamily
  - Kernel
  - libarchive
  - Vim
  - WebKit

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

Versions of PHP prior to 7.1.0 are vulnerable to the following issues :

 - A flaw exists that is due to 'parse_url' returning the incorrect host. This may allow a remote attacker to have an impact that may include bypassing authentication, or conducting open redirection and server-side request forgery attacks, depending on how the function is implemented.
 - An overflow condition exists in the 'dynamicGetbuf()' function in 'gd_io_dp.c'. The issue is triggered as certain input is not properly validated. With a specially crafted string, a remote attacker can cause a stack-based buffer overflow, resulting in a denial of service in a process utilizing the language or potentially allowing the execution of arbitrary code.
 - A use-after-free error exists in the 'unserialize()' function related to uses of '__wakeup' which modify properties. This may allow a remote attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists that is triggered when handling unserialized object properties. With a specially crafted request, a remote attacker can dereference already freed memory and potentially execute arbitrary code. 

- Security fix for CVE-2016-8670

  - Security fix for CVE-2016-6911

  - Security fix for CVE-2016-7568

  - For Fedora 26 disabled two tests - they are failing     because of freetype 2.7     (https://github.com/libgd/libgd/issues/302,     https://github.com/libgd/libgd/issues/217)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for php5 fixes the following security issues :

  - CVE-2016-7568: A specially crafted image file could     cause an application crash or potentially execute     arbitrary code when the image is converted to webp     (bsc#1001900)

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

This update was imported from the SUSE:SLE-12:Update update project.

This update for gd fixes the following security issues :

  - CVE-2016-7568: A specially crafted image file could     cause an application crash or potentially execute     arbitrary code when the image is converted to webp     (bsc#1001900)

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

This update was imported from the SUSE:SLE-12:Update update project.

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. (CVE-2016-6911)

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. (CVE-2016-7568)

Emmanuel Law discovered that the GD library incorrectly handled certain strings when creating images. If a user or automated system were tricked into processing a specially crafted image, an attacker could cause a denial of service, or possibly execute arbitrary code.
(CVE-2016-8670).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for php53 fixes the following issues :

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for gd fixes the following issues :

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for gd fixes the following security issues :

  - CVE-2016-7568: A specially crafted image file could     cause an application crash or potentially execute     arbitrary code when the image is converted to webp     (bsc#1001900)

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924)

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for php5 fixes the following issu :

  - CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf     (bsc#1004924).

  - CVE-2016-7568: Integer overflow in the gdImageWebpCtx     function in gd_webp.c (libgd) (bsc#1001900).

  - CVE-2016-6911: Check for out-of-bound read in     dynamicGetbuf() (bsc#1005274).

CVE-2016-6911 invalid read in gdImageCreateFromTiffPtr() (most of the code is not present in the Wheezy version)

CVE-2016-8670: Stack Buffer Overflow in GD dynamicGetbuf

For Debian 7 'Wheezy', these problems have been fixed in version 2.0.36~rc1~dfsg-6.1+deb7u6.

We recommend that you upgrade your libgd2 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple vulnerabilities have been discovered in the GD Graphics Library, which may result in denial of service or potentially the execution of arbitrary code if a malformed file is processed.

ID	Name	Product	Family	Severity
119985	SUSE SLES12 Security Update : php5 (SUSE-SU-2016:2766-1)	Nessus	SuSE Local Security Checks	critical
119984	SUSE SLES12 Security Update : php7 (SUSE-SU-2016:2683-1)	Nessus	SuSE Local Security Checks	critical
101312	EulerOS 2.0 SP2 : gd (EulerOS-SA-2017-1128)	Nessus	Huawei Local Security Checks	critical
99890	EulerOS 2.0 SP1 : gd (EulerOS-SA-2017-1045)	Nessus	Huawei Local Security Checks	critical
96805	Amazon Linux AMI : php56 (ALAS-2017-787)	Nessus	Amazon Linux Local Security Checks	critical
96731	macOS 10.12.x < 10.12.3 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	high
9843	PHP < 7.1.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	critical
96026	Fedora 24 : gd (2016-e45a7e7b13)	Nessus	Fedora Local Security Checks	critical
95678	Fedora 25 : gd (2016-722c0afc64)	Nessus	Fedora Local Security Checks	critical
94952	openSUSE Security Update : php5 (openSUSE-2016-1321)	Nessus	SuSE Local Security Checks	critical
94944	openSUSE Security Update : php5 (openSUSE-2016-1308)	Nessus	SuSE Local Security Checks	critical
94753	openSUSE Security Update : gd (openSUSE-2016-1281)	Nessus	SuSE Local Security Checks	critical
94466	Ubuntu 14.04 LTS / 16.04 LTS : GD library vulnerabilities (USN-3117-1)	Nessus	Ubuntu Local Security Checks	critical
94455	SUSE SLES11 Security Update : php53 (SUSE-SU-2016:2681-1)	Nessus	SuSE Local Security Checks	critical
94435	SUSE SLES11 Security Update : gd (SUSE-SU-2016:2670-1)	Nessus	SuSE Local Security Checks	critical
94434	SUSE SLED12 / SLES12 Security Update : gd (SUSE-SU-2016:2668-1)	Nessus	SuSE Local Security Checks	critical
94243	openSUSE Security Update : php5 (openSUSE-2016-1221)	Nessus	SuSE Local Security Checks	critical
94113	Debian DLA-665-1 : libgd2 security update	Nessus	Debian Local Security Checks	critical
94079	Debian DSA-3693-1 : libgd2 - security update	Nessus	Debian Local Security Checks	critical

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CVE-2016-8670

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