var-201908-1840

Vulnerability from variot

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 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 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. PHP EXIF Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. PHP (PHP: Hypertext Preprocessor, PHP: Hypertext Preprocessor) is an open source general-purpose computer scripting language jointly maintained by PHPGroup and the open source community. The language is mainly used for Web development and supports a variety of databases and operating systems. A buffer error vulnerability exists in PHP 7.1.x prior to 7.1.31, 7.2.x prior to 7.2.21, and 7.3.x prior to 7.3.8. This vulnerability stems from the incorrect verification of data boundaries when the network system or product performs operations on the memory, resulting in incorrect read and write operations to other associated memory locations. Attackers can exploit this vulnerability to cause buffer overflow or heap overflow, etc. PHP is prone to a heap-based buffer-overflow vulnerability. Failed exploits will result in denial-of-service conditions.

PHP versions before 7.3.8 are vulnerable.

For the stable distribution (buster), these problems have been fixed in version 7.3.9-1~deb10u1.

We recommend that you upgrade your php7.3 packages. ========================================================================= Ubuntu Security Notice USN-4097-1 August 13, 2019

php7.0, php7.2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 19.04
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary:

PHP could be made to crash or execute arbitrary code if it received specially crafted image. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2019-11041, CVE-2019-11042)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04: libapache2-mod-php7.2 7.2.19-0ubuntu0.19.04.2 php7.2-cgi 7.2.19-0ubuntu0.19.04.2 php7.2-cli 7.2.19-0ubuntu0.19.04.2 php7.2-fpm 7.2.19-0ubuntu0.19.04.2 php7.2-xmlrpc 7.2.19-0ubuntu0.19.04.2

Ubuntu 18.04 LTS: libapache2-mod-php7.2 7.2.19-0ubuntu0.18.04.2 php7.2-cgi 7.2.19-0ubuntu0.18.04.2 php7.2-cli 7.2.19-0ubuntu0.18.04.2 php7.2-fpm 7.2.19-0ubuntu0.18.04.2 php7.2-xmlrpc 7.2.19-0ubuntu0.18.04.2

Ubuntu 16.04 LTS: libapache2-mod-php7.0 7.0.33-0ubuntu0.16.04.6 php7.0-cgi 7.0.33-0ubuntu0.16.04.6 php7.0-cli 7.0.33-0ubuntu0.16.04.6 php7.0-fpm 7.0.33-0ubuntu0.16.04.6 php7.0-xmlrpc 7.0.33-0ubuntu0.16.04.6

In general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

===================================================================== Red Hat Security Advisory

Synopsis: Critical: rh-php72-php security update Advisory ID: RHSA-2019:3299-01 Product: Red Hat Software Collections Advisory URL: https://access.redhat.com/errata/RHSA-2019:3299 Issue date: 2019-11-01 CVE Names: CVE-2016-10166 CVE-2018-20783 CVE-2019-6977 CVE-2019-9020 CVE-2019-9021 CVE-2019-9022 CVE-2019-9023 CVE-2019-9024 CVE-2019-9637 CVE-2019-9638 CVE-2019-9639 CVE-2019-9640 CVE-2019-11034 CVE-2019-11035 CVE-2019-11036 CVE-2019-11038 CVE-2019-11039 CVE-2019-11040 CVE-2019-11041 CVE-2019-11042 CVE-2019-11043 =====================================================================

Summary:

An update for rh-php72-php is now available for Red Hat Software Collections.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Relevant releases/architectures:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) - ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) - ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Description:

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

The following packages have been upgraded to a later upstream version: rh-php72-php (7.2.24). (BZ#1766603)

Security Fix(es):

php: underflow in env_path_info in fpm_main.c (CVE-2019-11043)
gd: Unsigned integer underflow _gdContributionsAlloc() (CVE-2016-10166)
gd: Heap based buffer overflow in gdImageColorMatch() in gd_color_match.c (CVE-2019-6977)
php: Invalid memory access in function xmlrpc_decode() (CVE-2019-9020)
php: File rename across filesystems may allow unwanted access during processing (CVE-2019-9637)
php: Uninitialized read in exif_process_IFD_in_MAKERNOTE (CVE-2019-9638)
php: Uninitialized read in exif_process_IFD_in_MAKERNOTE (CVE-2019-9639)
php: Invalid read in exif_process_SOFn() (CVE-2019-9640)
php: Out-of-bounds read due to integer overflow in iconv_mime_decode_headers() (CVE-2019-11039)
php: Buffer over-read in exif_read_data() (CVE-2019-11040)
php: Buffer over-read in PHAR reading functions (CVE-2018-20783)
php: Heap-based buffer over-read in PHAR reading functions (CVE-2019-9021)
php: memcpy with negative length via crafted DNS response (CVE-2019-9022)
php: Heap-based buffer over-read in mbstring regular expression functions (CVE-2019-9023)
php: Out-of-bounds read in base64_decode_xmlrpc in ext/xmlrpc/libxmlrpc/base64.c (CVE-2019-9024)
php: Heap buffer overflow in function exif_process_IFD_TAG() (CVE-2019-11034)
php: Heap buffer overflow in function exif_iif_add_value() (CVE-2019-11035)
php: Buffer over-read in exif_process_IFD_TAG() leading to information disclosure (CVE-2019-11036)
gd: Information disclosure in gdImageCreateFromXbm() (CVE-2019-11038)
php: heap buffer over-read in exif_scan_thumbnail() (CVE-2019-11041)
php: heap buffer over-read in exif_process_user_comment() (CVE-2019-11042)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Bugs fixed (https://bugzilla.redhat.com/):

1418983 - CVE-2016-10166 gd: Unsigned integer underflow _gdContributionsAlloc() 1672207 - CVE-2019-6977 gd: Heap based buffer overflow in gdImageColorMatch() in gd_color_match.c 1680545 - CVE-2018-20783 php: Buffer over-read in PHAR reading functions 1685123 - CVE-2019-9020 php: Invalid memory access in function xmlrpc_decode() 1685132 - CVE-2019-9021 php: Heap-based buffer over-read in PHAR reading functions 1685398 - CVE-2019-9023 php: Heap-based buffer over-read in mbstring regular expression functions 1685404 - CVE-2019-9024 php: Out-of-bounds read in base64_decode_xmlrpc in ext/xmlrpc/libxmlrpc/base64.c 1685412 - CVE-2019-9022 php: memcpy with negative length via crafted DNS response 1688897 - CVE-2019-9637 php: File rename across filesystems may allow unwanted access during processing 1688922 - CVE-2019-9638 php: Uninitialized read in exif_process_IFD_in_MAKERNOTE 1688934 - CVE-2019-9639 php: Uninitialized read in exif_process_IFD_in_MAKERNOTE 1688939 - CVE-2019-9640 php: Invalid read in exif_process_SOFn() 1702246 - CVE-2019-11035 php: Heap buffer overflow in function exif_iif_add_value() 1702256 - CVE-2019-11034 php: Heap buffer overflow in function exif_process_IFD_TAG() 1707299 - CVE-2019-11036 php: Buffer over-read in exif_process_IFD_TAG() leading to information disclosure 1724149 - CVE-2019-11038 gd: Information disclosure in gdImageCreateFromXbm() 1724152 - CVE-2019-11039 php: Out-of-bounds read due to integer overflow in iconv_mime_decode_headers() 1724154 - CVE-2019-11040 php: Buffer over-read in exif_read_data() 1739459 - CVE-2019-11041 php: heap buffer over-read in exif_scan_thumbnail() 1739465 - CVE-2019-11042 php: heap buffer over-read in exif_process_user_comment() 1766378 - CVE-2019-11043 php: underflow in env_path_info in fpm_main.c

Package List:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):