Using Magick to read a malicious SVG file resulted in a DoS attack.
bt obtained using gdb:
#4 0x0000555555794c9c in ResizeMagickMemory (memory=0x7fffee203800, size=391344) at MagickCore/memory.c:1443
#5 0x0000555555794e5a in ResizeQuantumMemory (memory=0x7fffee203800, count=48918, quantum=8)
at MagickCore/memory.c:1508
#6 0x0000555555acc8ed in SVGStartElement (context=0x517000000080, name=0x5190000055e3 "g", attributes=0x0)
at coders/svg.c:1254
#7 0x00007ffff6799b1c in xmlParseStartTag () at /lib/x86_64-linux-gnu/libxml2.so.2
#8 0x00007ffff68c7bb8 in () at /lib/x86_64-linux-gnu/libxml2.so.2
#9 0x00007ffff67a03f1 in xmlParseChunk () at /lib/x86_64-linux-gnu/libxml2.so.2
This is related to the SVGStartElement and ResizeQuantumMemory functions.
Generate an SVG file
Read this file using Magick:
./magick /data/ylwang/Tools/LargeScan/targets/ImageMagick/test++/1.svg null
My server has a large amount of memory, causing a stack overflow to take a long time. I'll use the Windows release version as an example:
PS C:\Program Files\ImageMagick-7.1.2-Q8> .\magick.exe -ping 1.svg null:
PS C:\Program Files\ImageMagick-7.1.2-Q8> echo $LASTEXITCODE
-1073741571
The error code -1073741571 indicates a crash due to a stack overflow.
This is a DoS vulnerability and all applications using Magick to parse SVG files are affected.
{
"license": "CC-BY-4.0",
"sources": [
{
"database_specific": {
"status": "Analyzed"
},
"published": "2025-12-30T17:15:43.463Z",
"imported": "2026-07-30T14:08:44.533Z",
"id": "CVE-2025-68618",
"modified": "2026-06-17T09:59:21.363Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68618",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-68618"
},
{
"id": "GHSA-p27m-hp98-6637",
"published": "2025-12-30T22:54:32Z",
"imported": "2026-07-30T14:10:11.474Z",
"url": "https://api.github.com/advisories/GHSA-p27m-hp98-6637",
"html_url": "https://github.com/advisories/GHSA-p27m-hp98-6637",
"modified": "2025-12-30T22:54:34Z"
},
{
"id": "EUVD-2025-205813",
"published": "2025-12-30T16:14:24Z",
"imported": "2026-07-30T14:08:55.606Z",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-205813",
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-205813",
"modified": "2025-12-30T18:11:48Z"
}
]
}