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CVE Record

CVE-2017-17724: In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::IptcData::printStructure function in ip...

In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::IptcData::printStructure function in iptc.cpp, related to the "!= 0x1c" case. Remote attackers can exploit this vulnerability to cause a denial of service via a crafted TIFF file.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-17724 is a denial-of-service flaw in Exiv2 0.26, a library used to read image metadata. A malicious TIFF file can make affected software crash when Exiv2 parses IPTC metadata. The main business risk is disruption to services that process untrusted images, not confirmed data theft or remote code execution.

Executive priority

Prioritize remediation for internet-facing upload and media-processing services. For back-office systems without untrusted image ingestion, schedule through normal patching. The available evidence supports service disruption risk, not confirmed compromise or active exploitation.

Technical view

The issue is a heap-based buffer over-read in Exiv2::IptcData::printStructure in iptc.cpp, involving handling of data not matching 0x1c. The CVE describes remote attackers causing denial of service through a crafted TIFF file. No CVSS score, CWE, or affected CPE list is provided in the bundle.

Likely exposure

Exposure is most likely where Exiv2 0.26 or distro-packaged Exiv2 is used in web uploads, media pipelines, document handling, or automated metadata extraction for TIFF files.

Exploitation context

The source bundle includes a public PoC reference, but it does not cite active exploitation and CISA KEV status is false. Treat this as a crashable parser bug with plausible remote trigger paths wherever untrusted TIFF files are accepted.

Researcher notes

Evidence is limited to the CVE description and referenced issue/advisories. The bundle does not provide CVSS, CWE, fixed upstream version, or broad affected-product data. Avoid expanding scope beyond Exiv2 0.26 and downstream packages covered by vendor advisories.

Mitigation direction

  • Update Exiv2 packages using Gentoo, Red Hat, or relevant vendor advisories.
  • Identify and retire direct use of Exiv2 0.26 where possible.
  • Restrict or quarantine untrusted TIFF uploads until patched.
  • Run image metadata parsing in isolated, least-privileged workers.
  • Monitor vendor guidance for exact fixed package versions.

Validation and detection

  • Inventory systems and containers for Exiv2 libraries or packages.
  • Confirm any Exiv2 0.26 installations are upgraded or isolated.
  • Map applications that parse user-supplied TIFF or IPTC metadata.
  • Check crash logs for failures during image metadata extraction.
  • Verify patched package status against distro advisories.
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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CVE-2017-17724 mapping review

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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

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.