CVE-2023-29407Network attack vector

Service interruption via zero-height tiled-image iteration

Published Aug 2, 2023 · Updated Feb 13, 2025

Excessive iteration in golang.org/x/image/tiff before 0.10.0 allows attackers to interrupt services through a crafted TIFF image. Decode and DecodeConfig iterate once per horizontal pixel when a tiled image has zero height, allowing a maximum-width image to trigger 2^32 no-op iterations. A consuming application must pass attacker-controlled TIFF data to an affected decoder; the consequence is CPU exhaustion rather than data access or modification.

CVSS severity6.5
Medium
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Excessive iteration in golang.org/x/image/tiff before 0.10.0 allows attackers to interrupt services through a crafted TIFF image. Decode and DecodeConfig iterate once per horizontal pixel when a tiled image has zero height, allowing a maximum-width image to trigger 2^32 no-op iterations. A consuming application must pass attacker-controlled TIFF data to an affected decoder; the consequence is CPU exhaustion rather than data access or modification.

The record

CVE
CVE-2023-29407
Published
Aug 2, 2023
Updated
Feb 13, 2025
Vendor
golang.org/x/image
Product
golang.org/x/image/tiff
Classifications
CWE-834, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record 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=0 <0.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

golang.org/x/image · golang.org/x/image/tiffversion=0 <0.10.0

Published CVSS scores

6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-834Excessive Iteration
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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