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GHSA-543g-8grm-9cw6

MediumCVSS 5.3 / 10
Published Feb 24, 2026·Last modified Feb 24, 2026
Affected Components(0)

No affected components available

Description

A logic error in YUV sampling factor validation allows an invalid sampling factor to bypass checks and trigger a division-by-zero during image loading, resulting in a reliable denial-of-service.

coders/yuv.c:210:47: runtime error: division by zero
AddressSanitizer:DEADLYSIGNAL
=================================================================
==3543373==ERROR: AddressSanitizer: UNKNOWN SIGNAL on unknown address 0x000000000000 (pc 0x55deeb4d723c bp 0x7fffc28d34d0 sp 0x7fffc28d3320 T0)
    #0 0x55deeb4d723c in ReadYUVImage coders/yuv.c:210
    #1 0x55deeb751dff in ReadImage MagickCore/constitute.c:743
    #2 0x55deeb756374 in ReadImages MagickCore/constitute.c:1082
    #3 0x55deec682375 in CLINoImageOperator MagickWand/operation.c:4959
    #4 0x55deec6887ed in CLIOption MagickWand/operation.c:5473
    #5 0x55deec32843b in ProcessCommandOptions MagickWand/magick-cli.c:653
    #6 0x55deec32b99b in MagickImageCommand MagickWand/magick-cli.c:1392
    #7 0x55deec324d58 in MagickCommandGenesis MagickWand/magick-cli.c:177
    #8 0x55deead82519 in MagickMain utilities/magick.c:162
    #9 0x55deead828be in main utilities/magick.c:193
    #10 0x7fb90807fd8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
    #11 0x7fb90807fe3f in __libc_start_main_impl ../csu/libc-start.c:392
    #12 0x55deead81974 in _start (/data/ylwang/LargeScan/targets/ImageMagick/utilities/magick+0x22fb974)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: UNKNOWN SIGNAL coders/yuv.c:210 in ReadYUVImage
==3543373==ABORTING
Risk Scores
Base Score
5.3

The vulnerability can be exploited over the network without needing physical access. 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.

Threat Intelligence
4.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.39%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Medium severity
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