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GHSA-7rvh-xqp3-pr8j
No affected components available
Summary
Magick fails to check for circular references between two MVGs, leading to a stack overflow.
Details
After reading mvg1 using Magick, the following is displayed:
./magick -limit memory 2GiB -limit map 2GiB -limit disk 0 mvg:L1.mvg out.png
AddressSanitizer:DEADLYSIGNAL
=================================================================
==3564123==ERROR: AddressSanitizer: UNKNOWN SIGNAL on unknown address 0x000000000000 (pc 0x5589549a4458 bp 0x7ffcc61f34a0 sp 0x7ffcc61efdd0 T0)
#0 0x5589549a4458 in GetImagePixelCache MagickCore/cache.c:1726
#1 0x5589549b02c1 in QueueAuthenticPixelCacheNexus MagickCore/cache.c:4261
#2 0x5589549a2f24 in GetAuthenticPixelCacheNexus MagickCore/cache.c:1368
#3 0x5589549bae98 in GetCacheViewAuthenticPixels MagickCore/cache-view.c:311
#4 0x558954afb3a5 in DrawPolygonPrimitive._omp_fn.1 MagickCore/draw.c:5172
#5 0x7f62dd89fa15 in GOMP_parallel (/lib/x86_64-linux-gnu/libgomp.so.1+0x14a15)
#6 0x558954ae0f41 in DrawPolygonPrimitive MagickCore/draw.c:5156
#7 0x558954ae5607 in DrawPrimitive MagickCore/draw.c:5875
#8 0x558954adc72d in RenderMVGContent MagickCore/draw.c:4522
#9 0x558954adcf67 in DrawImage MagickCore/draw.c:4561
#10 0x55895496cedb in RenderFreetype MagickCore/annotate.c:2065
#11 0x55895496702e in RenderType MagickCore/annotate.c:1112
#12 0x558954963da7 in AnnotateImage MagickCore/annotate.c:544
#13 0x558954ae4e0a in DrawPrimitive MagickCore/draw.c:5799
#14 0x558954adc72d in RenderMVGContent MagickCore/draw.c:4522
#15 0x558954adcf67 in DrawImage MagickCore/draw.c:4561
#16 0x558954755a46 in ReadMVGImage coders/mvg.c:240
#17 0x558954a15ecc in ReadImage MagickCore/constitute.c:743
#18 0x558954ae3c76 in DrawPrimitive MagickCore/draw.c:5705
#19 0x558954adc72d in RenderMVGContent MagickCore/draw.c:4522
#20 0x558954adcf67 in DrawImage MagickCore/draw.c:4561
#21 0x558954755a46 in ReadMVGImage coders/mvg.c:240
...
Impact
This is a DoS vulnerability, and any situation that allows reading the mvg file will be affected.
The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the availability of the system.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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