ImageMagick vulnerabilities

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains an incomplete cleanup flaw in the JNG decoder that fails to remove temporary files when processing crafted input. Attackers can submit crafted JNG files for processing to repeatedly leak temporary files, consuming disk space and degrading availability.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a code injection vulnerability in the MVG decoder when a PostScript renderer is used. Attackers can supply a crafted MVG file that, when decoded, injects code into the PostScript rendering path.

ImageMagick before 7.1.2-32 has a time-of-check time-of-use symlink race vulnerability that allows attackers to bypass the path security policy when executing a magick script. Attackers can swap a checked path with a symlink during script execution to read files blocked by the policy.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains an information disclosure vulnerability in the PostScript decoder, which allocates a buffer one byte longer than the data it decoded. Attackers can supply a crafted PostScript file to expose a single uninitialized byte of memory contents.

ImageMagick 7.1.1-31 before 7.1.2-32 has a NULL pointer dereference in the PostScript decoder triggered when a policy limit is reached. Attackers can supply a crafted PostScript file to crash the application, causing denial of service.

ImageMagick 7.1.2-30 before 7.1.2-32 has a use-after-free vulnerability in the WBINFO decoder when memory allocation fails during image decoding. Attackers can supply a crafted image that, under memory allocation failure, causes freed memory to be reused, crashing the application.

ImageMagick before 7.1.2-32 has a memory leak vulnerability in the -process option that allows attackers to cause unreleased memory allocations by supplying certain arguments. Repeated invocation of -process with crafted arguments can gradually exhaust memory and degrade service availability.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains an information disclosure vulnerability in the JPEG decoder, which performs a read that exposes uninitialized memory when handling crafted input. Attackers can supply a crafted JPEG file for processing to disclose uninitialized memory contents.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a use-after-free vulnerability in the PDF writer when writing CMYK images with JPEG2000 compression. A crafted CMYK image can cause freed memory to be reused, potentially crashing the process.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a stack overflow in the MSL decoder caused by an incorrect depth check that fails to limit recursion. Attackers can supply a set of crafted MSL images that exhaust the stack when one of them is read, crashing the process and causing a denial of service.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains an XML injection vulnerability in the CIP encoder, which does not properly escape input-derived data when writing Cisco IP Phone XML output. Attackers can supply a crafted file that, when converted to CIP format, injects arbitrary markup into the generated XML.

ImageMagick 7.1.1-7 before 7.1.2-32 contains a heap buffer over-read vulnerability that allows attackers to read beyond allocated memory due to incorrect string termination in XMP profiles. Attackers can supply a crafted image containing a malformed XMP profile to trigger the over-read and crash the application.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains uncontrolled recursion in the MVG decoder that can exhaust the program stack. An attacker controlling a file name processed by ImageMagick can trigger a stack overflow and crash the process.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a memory leak in the YUV encoder, which fails to release allocated memory when a specific operation fails. Crafted input can trigger the failing operation, leaking memory and potentially exhausting resources.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a memory leak in the SVG encoder (WriteSVGImage) that fails to release allocated memory when handling crafted images. Attackers can supply crafted image files that are processed by the SVG encoder to leak memory and cause a denial of service through resource consumption.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a memory leak in the GIF encoder because allocated memory is not released when color quantization fails during encoding. Crafted images can leak memory with each conversion attempt.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a memory leak in the PNG encoder, which does not release allocated memory when libpng initialization fails. Repeated failed PNG encoding operations can exhaust memory.

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains an uninitialized memory read in the TGA image decoder that can expose memory contents. Attackers can supply a crafted TGA image for processing to disclose contents of uninitialized memory from the ImageMagick process.

ImageMagick 7.1.0-20 before 7.1.2-32 contains an invalid memory free vulnerability in the fx operation that occurs when initialization of an FX runtime entry fails. This can lead to memory corruption and application crashes.

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 does not properly account for symbolic links in the IsRightsAuthorizedByName security policy check, allowing bypass of configured policy restrictions. Local attacker can create a symlink to a policy-restricted path.

ImageMagick on Windows through 7.1.2-33 and 6.9.13-58 contains an uncontrolled search path vulnerability in NTGhostscriptEXE() that launches gswin64c.exe by bare name when Ghostscript is unregistered. Attackers can plant a malicious gswin64c.exe in the working directory to execute code with ImageMagick privileges when PDF, PostScript, or EPS files are converted.

ImageMagick prior to versions 7.1.2-30 and 6.9.13-55 contains a vulnerability where a crafted highly compressed MAT image can make the MAT decoder create temporary files larger than the configured security-policy limit, bypassing resource restrictions and consuming excessive disk space. This issue is fixed in versions 7.1.2-30 and 6.9.13-55.

ImageMagick prior to versions 7.1.2-30 and 6.9.13-55, when built without Cairo support, contains a vulnerability where a crafted RSVG image that reaches a resource limit can cause the RSVG decoder to free image state twice and then use freed memory, crashing the process. This issue is fixed in versions 7.1.2-30 and 6.9.13-55.

ImageMagick prior to versions 7.1.2-30 and 6.9.13-55 contains a vulnerability where a crafted XMP profile can reach a recursion limit that is handled as a fatal condition instead of an ordinary exception, terminating the image-processing process. This issue is fixed in versions 7.1.2-30 and 6.9.13-55.

ImageMagick prior to versions 7.1.2-31 and 6.9.13-56 contains a vulnerability where a missing security-policy check in the CUT encoder allows a crafted local encoding operation to read data that policy should deny and can also cause a crash. This issue is fixed in versions 7.1.2-31 and 6.9.13-56.

ImageMagick prior to versions 7.1.2-31 and 6.9.13-56 contains a vulnerability where a crafted image can bypass an ImageMagick security policy that uses coder as its domain, potentially allowing data prohibited by the policy to be read. This issue is fixed in versions 7.1.2-31 and 6.9.13-56.

ImageMagick prior to versions 7.1.2-31 and 6.9.13-56 contains a vulnerability where a crafted image can cause an invalid memory free in the MVG decoder and crash the process. This issue is fixed in versions 7.1.2-31 and 6.9.13-56.

ImageMagick prior to versions 7.1.2-31 and 6.9.13-56 contains a vulnerability where unescaped or untrimmed values can inject code into output generated by PostScript coders. This issue is fixed in versions 7.1.2-31 and 6.9.13-56.

Prior to version 7.1.2-31 of ImageMagick, a crafted XMP profile can trigger excessive work while the parser determines a rational value's numerator and denominator, causing denial of service. This issue is fixed in version 7.1.2-31.

Prior to version 7.1.2-31 of ImageMagick, a crafted Magick script can cause an opened file pointer to remain unclosed, allowing repeated processing to exhaust available file descriptors. This issue is fixed in version 7.1.2-31.

Prior to version 7.1.2-31 of ImageMagick, a client connected to the distributed pixel cache server can send crafted pixel data that triggers an integer-size calculation error and a heap buffer overwrite, crashing the server. This issue is fixed in version 7.1.2-31.

Prior to versions 7.1.2-31 and 6.9.13-56 of ImageMagick, a missing limit check in the MVG decoder allows a crafted MVG image to trigger an excessively long-running operation. This issue is fixed in versions 7.1.2-31 and 6.9.13-56.

Prior to versions 7.1.2-30 and 6.9.13-55 of ImageMagick, a missing recursion-depth check in the CALS decoder allows a crafted CALS image to exhaust the call stack and terminate the process. This issue is fixed in versions 7.1.2-30 and 6.9.13-55.

Prior to versions 6.9.13-56 and 7.1.2-31 of ImageMagick, a crafted local call to the GetVirtualPixels API can trigger an integer calculation error and write beyond a heap buffer, crashing the server process. This issue is fixed in versions 6.9.13-56 and 7.1.2-31.

Prior to version 7.1.2-32 of ImageMagick, an unauthenticated adjacent-network client can repeatedly connect to the distributed pixel cache server and exhaust its available connections, causing denial of service. This issue is fixed in version 7.1.2-32.

Prior to version 7.1.2-32 of ImageMagick, missing validation and resource checks in the ASE decoder allow a crafted ASE image to cause a crash or a long-running operation. This issue is fixed in version 7.1.2-32.

Prior to versions 7.1.2-32 and 6.9.13-57 of ImageMagick, a crafted XMP profile embedded in an image can cause the profile parser to enter an infinite loop, preventing image processing from completing. This issue is fixed in versions 7.1.2-32 and 6.9.13-57.

Prior to versions 7.1.2-32 and 6.9.13-57 of ImageMagick, a crafted PSD file can trigger an integer-conversion error in the PSD decoder on 32-bit builds, causing an infinite loop and denial of service. This issue is fixed in versions 7.1.2-32 and 6.9.13-57.

In ImageMagick prior to 7.1.2-32, the delegate symlink cleanup does not check the MAGICK_SHRED_PASSES environment variable. This allows a local privileged workflow to overwrite a file with random data. The issue is fixed in version 7.1.2-32.

In ImageMagick prior to 7.1.2-32 and 6.9.13-57, a missing end-of-file check while reading bzip2-compressed image data can cause an infinite loop. This exhausts processing resources. The issue is fixed in versions 7.1.2-32 and 6.9.13-57.

In ImageMagick prior to 7.1.2-32, a crafted EXR image can cause the EXR decoder to write beyond a heap buffer. This causes the process to crash. The issue is fixed in version 7.1.2-32.

ImageMagick before 7.1.2-32 and 6.9.13-57 contains a policy bypass vulnerability in LoadPolicyCache that silently skips security policy rules when policy.xml uses an alternate DOCTYPE. A valid DOCTYPE not ending in ']>' makes the parser consume the rest of the file, so no policy rules are applied and restricted operations become allowed.

ImageMagick versions before 7.1.2-32 and 6.9.13-57 contain uninitialized heap memory disclosure in the GIF decoder's application extension handler in coders/gif.c. Attackers can craft malicious GIF files that cause the number parser to read uninitialized heap memory and store contents as image metadata, disclosing sensitive heap information.

ImageMagick before 7.1.2-31 contains a policy bypass vulnerability in the UHDR encoder that fails to perform policy checks during buffer allocation for image pixels. Attackers can bypass resource policies by processing specially crafted UHDR images, potentially causing denial of service through excessive memory allocation.

ImageMagick before 7.1.2-31 and 6.9.13-56 contains a division-by-zero flaw in the FLIF encoder. An incorrect value for ticks per second in the image being encoded causes a divide-by-zero and crashes the encoder, resulting in a denial of service.

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a NULL pointer dereference in the PNM coder. When the coder reaches a memory (resource) limit at a specific point during processing, the failed allocation is not handled and a NULL pointer is dereferenced, which can lead to a denial of service (application crash) when processing a specially crafted or sufficiently large PNM image.

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a policy bypass in the PCD (and, per the upstream advisory, CUBE and HALD) coder: when a specific command line option is supplied, the decoder does not check a configured resource limit, which can result in extra memory allocation. A local user able to pass command line options to ImageMagick can therefore exceed the intended memory policy limit, causing a limited availability impact.

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a use-after-free vulnerability in the ImagesToBlob method, caused by a pointer that is not updated correctly. Exploitation may result in a limited availability impact (e.g., a crash of the affected process).

ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability in the Layer method of PerlMagick. An attacker supplying a crafted list of images can trigger memory access after deallocation, resulting in a crash (denial of service).

ImageMagick before 7.1.2-30 and 6.9.13-55 contains a time-of-check-time-of-use (TOCTOU) vulnerability in the video decoder that allows attackers to bypass path policy write restrictions via symlink swaps. An attacker can replace a symlink between policy validation and the file write operation to write to policy-denied locations.