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CVE Record

CVE-2017-11613: In LibTIFF 4.0.8, there is a denial of service vulnerability in the TIFFOpen function.

In LibTIFF 4.0.8, there is a denial of service vulnerability in the TIFFOpen function. A crafted input will lead to a denial of service attack. During the TIFFOpen process, td_imagelength is not checked. The value of td_imagelength can be directly controlled by an input file. In the ChopUpSingleUncompressedStrip function, the _TIFFCheckMalloc function is called based on td_imagelength. If we set the value of td_imagelength close to the amount of system memory, it will hang the system or trigger the OOM killer.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-11613 is a denial-of-service issue in LibTIFF 4.0.8. A specially crafted TIFF file can force excessive memory allocation during file opening, potentially hanging the system or triggering out-of-memory handling. The bundle does not show code execution or confirmed active exploitation.

Executive priority

Treat this as a service-availability risk, not a confirmed breach indicator. Prioritize patching internet-facing or automated image-processing systems first, especially where TIFF files come from customers, partners, or email attachments.

Technical view

During TIFFOpen, td_imagelength is not checked before ChopUpSingleUncompressedStrip calls _TIFFCheckMalloc. Because td_imagelength can be controlled by the input file, a crafted TIFF can request memory near system capacity and cause resource exhaustion.

Likely exposure

Exposure is most likely where servers, desktops, or batch jobs process untrusted TIFF images using affected LibTIFF packages or applications linked against them.

Exploitation context

The bundle describes crafted-file denial of service and includes vendor advisories from Ubuntu and Debian. CISA KEV status is false, and no cited source in the bundle confirms active exploitation.

Researcher notes

The key condition is attacker-controlled td_imagelength driving allocation during TIFFOpen via ChopUpSingleUncompressedStrip. Evidence in the bundle supports denial of service only. Product/version detail beyond LibTIFF 4.0.8 and vendor package advisories is incomplete.

Mitigation direction

  • Identify systems using LibTIFF or OS tiff packages.
  • Apply relevant vendor security updates from Debian, Ubuntu, or your platform vendor.
  • Limit processing of untrusted TIFF files where business workflows allow.
  • Run image processing with resource controls to reduce denial-of-service impact.
  • Monitor vendor guidance for fixed package versions and backports.

Validation and detection

  • Check installed LibTIFF and tiff package versions on affected systems.
  • Confirm package status against Debian, Ubuntu, or platform security advisories.
  • Inventory public upload, email, document, and image-conversion workflows accepting TIFF files.
  • Verify patched systems no longer use LibTIFF 4.0.8 or vulnerable backports.
  • Review logs for unexplained image-processing hangs or out-of-memory events.
Prepared
Confidence
medium
Sources
6

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

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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
6Source 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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