Affected: AlmaLinux:8: gd, AlmaLinux:8: gd-devel

GD is an open source code library for the dynamic creation of images by programmers. GD creates PNG, JPEG, GIF, WebP, XPM, BMP images, among other formats.

Security Fix(es):

* gd: Heap-based buffer overflow in gdImageColorMatch() in gd_color_match.c (CVE-2019-6977)

* gd: NULL pointer dereference in gdImageClone (CVE-2018-14553)

* gd: Double free in the gdImage*Ptr in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c (CVE-2019-6978)

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.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Withdrawn by the publisher.

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.

Security update for gd

gd: Unsigned integer underflow _gdContributionsAlloc() php: Out of bounds access in php_pcre.c:php_pcre_replace_impl() php: Integer overflow in mysqli_api.c:mysqli_real_escape_string() php: Heap use after free in ext/standard/var_unserializer.re php: Out-of-bound read in timelib_meridian() gd: Infinite loop in gdImageCreateFromGifCtx() in gd_gif_in.c php: Reflected XSS on PHAR 404 page php: Stack-based buffer under-read in php_stream_url_wrap_http_ex() in http_fopen_wrapper.c when parsing HTTP response php: Dumpable FPM child processes allow bypassing opcache access controls php: Infinite loop in ext/iconv/iconv.c when using stream filter with convert.incov on invalid sequence leads to denial-of-service php: Reflected XSS vulnerability on PHAR 403 and 404 error pages php: NULL pointer dereference due to mishandling of ldap_get_dn return value allows DoS via malicious LDAP server reply php: Out-of-bounds read in ext/exif/exif.c:exif_read_data() when reading crafted JPEG data php: exif: Buffer over-read in exif_process_IFD_in_MAKERNOTE() php: Mishandled http_header_value in an atoi() call in http_fopen_wrapper.c php: Cross-site scripting (XSS) flaw in Apache2 component via body of 'Transfer-Encoding: chunked' request php: Buffer over-read in PHAR reading functions gd: Heap-based buffer overflow in gdImageColorMatch() in gd_color_match.c php: Invalid memory access in function xmlrpc_decode() php: Heap-based buffer over-read in PHAR reading functions php: memcpy with negative le…

Security update for php7

Affected: Ubuntu:14.04:LTS: libgd2, Ubuntu:16.04:LTS: libgd2, Ubuntu:18.04:LTS: libgd2

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.