Last updated 15 November 2024

DISPUTED gdImageGd2Ptr in gdgd2.c in the GD Graphics Library (aka LibGD) through 2.3.2 has a double free. NOTE: the vendor's position is "The GD2 image format is a proprietary image format of libgd. It has to be regarded as being obsolete, and should only be used for development and testing purposes."

readheadertga in gdtga.c in the GD Graphics Library (aka LibGD) through 2.3.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file.

DISPUTED In the GD Graphics Library (aka LibGD) through 2.2.5, there is a heap-based buffer over-read in tiffWriter in gdtiff.c. NOTE: the vendor says "In my opinion this issue should not have a CVE, since the GD and GD2 formats are documented to be 'obsolete, and should only be used for development and testing purposes.'"

Fixed bug (Uninitialized read in gdImageCreateFromXbm) (CVE-2019-11038).

The GD Graphics Library (aka LibGD) 2.2.5 has a double free in the gdImagePtr() functions in gdgifout.c, gdjpeg.c, and gdwbmp.c. NOTE: PHP is unaffected.

References: https://github.com/libgd/libgd/issues/492

Upstream Patch: https://github.com/libgd/libgd/commit/553702980ae89c83f2d6e254d62cf82e204956d0 https://github.com/php/php-src/commit/089f7c0bc28d399b0420aa6ef058e4c1c120b2ae

Last updated 25 August 2025

Fixed bug (imagecolormatch Out Of Bounds Write on Heap). (CVE-2019-6977)

Last updated 25 August 2025

A flaw was found in gd as shipped with Fedora. Cloning a image with style "attached", triggers a NULL pointer dereference in 'gdImageClone' leading to denial of service.

Affected versions: gd-2.2.5 gd-2.2.4 gd-2.2.3 gd-2.2.2 gd-2.2.1 gd-2.2.0 gd-2.1.1 gd-2.1.0 gd-2.1.0-rc2

References:

https://bugzilla.redhat.com/showbug.cgi?id=1599032

Double free vulnerability in the gdImagePngPtr function in libgd2 before 2.2.5 allows remote attackers to cause a denial of service via vectors related to a palette with no colors.

The readimagetga function in gdtga.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file, related to the decompression buffer.

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.

Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.

The dynamicGetbuf function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TIFF image.

An integer overflow in gdio.c was found.

Upstream patch:

https://github.com/libgd/libgd/commit/69d2fd2c597ffc0c217de1238b9bf4d4bceba8e6

PHP bug:

https://bugs.php.net/bug.php?id=73869

CVE assignment:

http://www.openwall.com/lists/oss-security/2017/01/28/6

Fixed bug (DOS vulnerability in gdImageCreateFromGd2Ctx()). (CVE-2016-10167)

Integer signedness error in the dynamicGetbuf function in gdiodp.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.

Fixed bug (imagefilltoborder stackoverflow on truecolor images). (CVE-2016-9933)

The readimagetga function in gdtga.c in the GD Graphics Library (aka libgd) before 2.2.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA image.

Integer overflow in the gdImageWebpCtx function in gdwebp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP through 7.0.11, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted imagewebp and imagedestroy calls.

Integer overflow in the gdContributionsAlloc function in gdinterpolation.c in GD Graphics Library (aka libgd) before 2.2.3 allows remote attackers to cause a denial of service (out-of-bounds memory write or memory consumption) via unspecified vectors.

The output function in gdgifout.c in the GD Graphics Library (aka libgd) allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted image.

The gdImageCreateFromTgaCtx function in the GD Graphics Library (aka libgd) before 2.2.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file.

gdtga.c in the GD Graphics Library (aka libgd) before 2.2.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file.

Integer overflow in the gdImageCreate function in gd.c in the GD Graphics Library (aka libgd) before 2.0.34RC1, as used in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted image dimensions.

gdinterpolation.c in the GD Graphics Library (aka libgd) before 2.1.1, as used in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7, allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted image that is mishandled by the imagescale function.

Integer overflow in the gd2GetHeader function in gdgd2.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via crafted chunk dimensions in an image.

gdxbm.c in the GD Graphics Library (aka libgd) before 2.2.0, as used in certain custom PHP 5.5.x configurations, allows context-dependent attackers to obtain sensitive information from process memory or cause a denial of service (stack-based buffer under-read and application crash) via a long name.

The gdImageCropThreshold function in gdcrop.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 7.0.9, allows remote attackers to cause a denial of service (application crash) via an invalid color index.