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CVE Record

CVE-2017-11523: The ReadTXTImage function in coders/txt.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows rem...

The ReadTXTImage function in coders/txt.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a denial of service (infinite loop) via a crafted file, because the end-of-file condition is not considered.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This ImageMagick flaw can make a service hang when it processes a specially crafted TXT image file. The main business risk is denial of service in systems that accept or transform untrusted images, such as upload pipelines or media processing workers.

Executive priority

Treat this as a targeted availability risk. It is most urgent for platforms where image processing is customer-facing or shared across tenants; otherwise handle through normal patching.

Technical view

ReadTXTImage in ImageMagick coders/txt.c did not consider the end-of-file condition, allowing a crafted file to trigger an infinite loop. The CVE description covers ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1. The impact described is availability, not data theft or code execution.

Likely exposure

Exposure is most likely where ImageMagick processes user-supplied or externally sourced images, especially automated upload, conversion, thumbnailing, or document-processing services.

Exploitation context

The supplied sources describe remote denial of service via crafted file processing. KEV is false, and the bundle provides no evidence of active exploitation or public weaponization.

Researcher notes

Structured affected-product data is incomplete in the bundle, but the CVE description names ImageMagick version ranges. The referenced commits and Debian advisories indicate vendor-side remediation existed, but exact fixed upstream versions should be confirmed from vendor guidance.

Mitigation direction

  • Update ImageMagick using vendor or distribution security guidance.
  • Prioritize internet-facing or multi-tenant image processing services.
  • Restrict processing of untrusted TXT image inputs where feasible.
  • Run image conversion jobs with resource limits and isolation.
  • Check Debian DSA-4019 or DLA 1785-1 if using Debian packages.

Validation and detection

  • Inventory ImageMagick versions on servers, containers, and build images.
  • Identify services that pass user-controlled files to ImageMagick.
  • Confirm deployed versions are newer than the affected ranges.
  • Review package advisories for backported fixes in distro builds.
  • Monitor image-processing workers for hangs, timeouts, or queue buildup.
Prepared
Confidence
medium
Sources
7

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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