CVE-2019-11038

When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code.

When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code.

PHP is an HTML-embedded scripting language. PHP attempts to make it easy for developers to write dynamically generated web pages. PHP also offers built-in database integration for several commercial and non-commercial database management systems, so writing a database-enabled webpage with PHP is fairly simple. The most common use of PHP coding is probably as a replacement for CGI scripts. The php package contains the module (often referred to as mod_php) which adds support for the PHP language to Apache HTTP Server.

Security Fix(es):

In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.(CVE-2020-7067)

When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code.(CVE-2019-11038)

Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may lead to information disclosure or crash.(CVE-2019-11039)

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.(CVE-2019-11040)

When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code.

The updated packages fix a security vulnerability:

When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code. (CVE-2019-11038)

This update for gd fixes the following issues:

Security issue fixed:

• CVE-2018-14553: Fixed a null pointer dereference in gdImageClone (bsc#1165471).
• CVE-2019-11038: Fixed a information disclosure in gdImageCreateFromXbm() (bsc#1140120).

This update was imported from the SUSE:SLE-15:Update update project.

These are all security issues fixed in the gd-2.3.3-1.1 package on the GA media of openSUSE Tumbleweed.

This update for php53 fixes the following issues:

Security issues fixed:

• CVE-2019-11038: Fixed a information disclosure in gdImageCreateFromXbm() (bsc#1140118).
• CVE-2019-11041: Fixed heap buffer over-read in exif_scan_thumbnail() (bsc#1146360).
• CVE-2019-11042: Fixed heap buffer over-read in exif_process_user_comment() (bsc#1145095).

This update for php7 fixes the following issues:

Security issues fixed:

• CVE-2019-11038: Fixed a information disclosure in gdImageCreateFromXbm() (bsc#1140118).
• CVE-2019-11041: Fixed heap buffer over-read in exif_scan_thumbnail() (bsc#1146360).
• CVE-2019-11042: Fixed heap buffer over-read in exif_process_user_comment() (bsc#1145095).

This update for gd fixes the following issues:

Security issue fixed:

• CVE-2018-14553: Fixed a null pointer dereference in gdImageClone (bsc#1165471).
• CVE-2019-11038: Fixed a information disclosure in gdImageCreateFromXbm() (bsc#1140120).

This update for gd fixes the following issues:

Security issue fixed:

• CVE-2018-14553: Fixed a null pointer dereference in gdImageClone (bsc#1165471).
• CVE-2019-11038: Fixed a information disclosure in gdImageCreateFromXbm() (bsc#1140120).

This update for gd fixes the following issues:

• CVE-2017-7890: Fixed a buffer over-read into uninitialized memory (bsc#1050241).
• CVE-2018-14553: Fixed a null pointer dereference in gdImageClone() (bsc#1165471).
• CVE-2019-11038: Fixed a information disclosure in gdImageCreateFromXbm() (bsc#1140120).

It was discovered that GD Graphics Library incorrectly handled cloning an image. An attacker could possibly use this issue to cause GD Graphics Library to crash, resulting in a denial of service. (CVE-2018-14553)

It was discovered that GD Graphics Library incorrectly handled loading images from X bitmap format files. An attacker could possibly use this issue to cause GD Graphics Library to crash, resulting in a denial of service, or to disclose contents of the stack that has been left there by previous code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2019-11038)

USN-4316-1 fixed a vulnerability in GD Graphics Library. This update provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that GD Graphics Library incorrectly handled cloning an image. An attacker could possibly use this issue to cause GD Graphics Library to crash, resulting in a denial of service. (CVE-2018-14553)

It was discovered that GD Graphics Library incorrectly handled loading images from X bitmap format files. An attacker could possibly use this issue to cause GD Graphics Library to crash, resulting in a denial of service, or to disclose contents of the stack that has been left there by previous code. (CVE-2019-11038)