Low
ImageMagick has a Memory Leak in magick stream
Summary
In ImageMagick's magick stream command, specifying multiple consecutive %d format specifiers in a filename template causes a memory leak.
Details
- Vulnerability Type: Memory leak
- Affected Version: ImageMagick 7.1.1-47 (as of commit 82572afc, June 2025)
Reproduction
Tested Environment
- Operating System: Ubuntu 22.04 LTS
- Architecture: x86_64
- Compiler: gcc with AddressSanitizer (gcc version: 11.4.0)
Reproduction Steps
bash
# Clone source
git clone --depth 1 --branch 7.1.1-47 https://github.com/ImageMagick/ImageMagick.git ImageMagick-7.1.1
cd ImageMagick-7.1.1
# Build with ASan
CFLAGS="-g -O0 -fsanitize=address -fno-omit-frame-pointer" CXXFLAGS="$CFLAGS" LDFLAGS="-fsanitize=address" ./configure --enable-maintainer-mode --enable-shared && make -j$(nproc) && make install
# Trigger crash
./utilities/magick stream %d%d a aOutput
bash
$ magick stream %d%d a a
stream: no decode delegate for this image format `' @ error/constitute.c/ReadImage/746.
stream: missing an image filename `a' @ error/stream.c/StreamImageCommand/755.
=================================================================
==114==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 152 byte(s) in 1 object(s) allocated from:
#0 0x7fc4ebe58887 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x7fc4eb563c5c in AcquireMagickMemory MagickCore/memory.c:559
#2 0x7fc4eb563c82 in AcquireCriticalMemory MagickCore/memory.c:635
#3 0x7fc4eb60c2be in AcquireQuantumInfo MagickCore/quantum.c:119
#4 0x7fc4eb6b6621 in StreamImage MagickCore/stream.c:1335
#5 0x7fc4eb09d889 in StreamImageCommand MagickWand/stream.c:292
#6 0x7fc4eaf1295d in MagickCommandGenesis MagickWand/magick-cli.c:177
#7 0x55a34f7c0a0c in MagickMain utilities/magick.c:153
#8 0x55a34f7c0cba in main utilities/magick.c:184
#9 0x7fc4ea38fd8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
Indirect leak of 64 byte(s) in 1 object(s) allocated from:
#0 0x7fc4ebe5957c in __interceptor_posix_memalign ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x7fc4eb680e2f in AcquireSemaphoreMemory MagickCore/semaphore.c:154
#2 0x7fc4eb680f30 in AcquireSemaphoreInfo MagickCore/semaphore.c:200
#3 0x7fc4eb60d38d in GetQuantumInfo MagickCore/quantum.c:435
#4 0x7fc4eb60c30e in AcquireQuantumInfo MagickCore/quantum.c:121
#5 0x7fc4eb6b6621 in StreamImage MagickCore/stream.c:1335
#6 0x7fc4eb09d889 in StreamImageCommand MagickWand/stream.c:292
#7 0x7fc4eaf1295d in MagickCommandGenesis MagickWand/magick-cli.c:177
#8 0x55a34f7c0a0c in MagickMain utilities/magick.c:153
#9 0x55a34f7c0cba in main utilities/magick.c:184
#10 0x7fc4ea38fd8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
SUMMARY: AddressSanitizer: 216 byte(s) leaked in 2 allocation(s).Commits
Fixed in https://github.com/ImageMagick/ImageMagick/commit/fc3ab0812edef903bbb2473c0ee652ddfd04fe5c and https://github.com/ImageMagick/ImageMagick6/commit/d49460522669232159c2269fa64f73ed30555c1b
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | Magick.NET-Q16-AnyCPU | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-arm64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-AnyCPU | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-arm64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-OpenMP-arm64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-OpenMP-x64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-x64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-x86 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-OpenMP-arm64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-OpenMP-x64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-x64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q16-x86 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q8-AnyCPU | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q8-arm64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q8-OpenMP-arm64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q8-OpenMP-x64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q8-x64 | < 14.7.0 | 14.7.0 |
| .NET (NuGet) | Magick.NET-Q8-x86 | < 14.7.0 | 14.7.0 |
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-cfh4-9f7v-fhrc
- https://nvd.nist.gov/vuln/detail/CVE-2025-53019
- https://github.com/ImageMagick/ImageMagick/commit/fc3ab0812edef903bbb2473c0ee652ddfd04fe5c
- https://github.com/ImageMagick/ImageMagick6/commit/d49460522669232159c2269fa64f73ed30555c1b
- https://github.com/ImageMagick/ImageMagick
- https://github.com/dlemstra/Magick.NET/releases/tag/14.7.0
- https://lists.debian.org/debian-lts-announce/2025/09/msg00012.html
CVSS score
3.7/10
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-125, CWE-401, CWE-404- Platform
- .NET (NuGet)
- Package
Magick.NET-Q16-AnyCPU, Magick.NET-Q16-arm64, Magick.NET-Q16-HDRI-AnyCPU- Disclosed
- 25.08.2025
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-cfh4-9f7v-fhrc - CC BY 4.0
Vulnerability history: Magick.NET-Q16-HDRI-x86
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 163
- First → latest
- 07.2025 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 26
- Medium 98
- Low 39
Disclosures per year
- 2025: 15
- 2026: 148
-
ImageMagick has a Memory Leak in magick stream this entry
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