CVE-2022-2520Public exploitNetwork attack vector

Process crash via conflicting tiffcrop options

Published Aug 31, 2022 · Updated Aug 3, 2024

Incorrect buffer-size calculation in LibTIFF 4.4.0rc1 allows remote attackers to crash tiffcrop via a crafted TIFF file. The rotateImage() path accepts mutually incompatible -S and crop or rotation options, corrupting heap state before limitMalloc() reaches a sysmalloc assertion. The utility must process crafted TIFF data with conflicting arguments; the demonstrated consequence is process abort, not code execution.

CVSS severity6.5
Medium
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect buffer-size calculation in LibTIFF 4.4.0rc1 allows remote attackers to crash tiffcrop via a crafted TIFF file. The rotateImage() path accepts mutually incompatible -S and crop or rotation options, corrupting heap state before limitMalloc() reaches a sysmalloc assertion. The utility must process crafted TIFF data with conflicting arguments; the demonstrated consequence is process abort, not code execution.

The record

CVE
CVE-2022-2520
Published
Aug 31, 2022
Updated
Aug 3, 2024
Vendor
LibTIFF
Product
LibTIFF
Classifications
CWE-617, CWE-131, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=libtiff 4.4.0rc1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LibTIFF · LibTIFFversion=libtiff 4.4.0rc1

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5Red HatCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion
CWE-131Incorrect Calculation of Buffer Size
T1204.002Malicious File

Public exploit references

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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