CVE-2023-34474

Application crash via undersized TIM2 color table

Published Jun 16, 2023 · Updated Aug 2, 2024

Heap-based buffer overflow in ImageMagick 7.1.1-10 allows local users to crash the application by opening a crafted TIM2 image. ReadTIM2ImageData allocates its color lookup table from the untrusted CLUT size alone instead of reserving space for the larger required color count. A user must open or convert the crafted file, after which the out-of-bounds access can terminate the image-processing application.

CVSS severity5.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in ImageMagick 7.1.1-10 allows local users to crash the application by opening a crafted TIM2 image. ReadTIM2ImageData allocates its color lookup table from the untrusted CLUT size alone instead of reserving space for the larger required color count. A user must open or convert the crafted file, after which the out-of-bounds access can terminate the image-processing application.

The record

CVE
CVE-2023-34474
Published
Jun 16, 2023
Updated
Aug 2, 2024
Vendor
ImageMagick Studio LLC
Product
ImageMagick
Classifications
CWE-787, CWE-122, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.1.1-10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ImageMagick Studio LLC · ImageMagickversion=7.1.1-10

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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