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CVE Record

CVE-2018-10772: The tEXtToDataBuf function in pngimage.cpp in Exiv2 through 0.26 allows remote attackers to cause a denial...

The tEXtToDataBuf function in pngimage.cpp in Exiv2 through 0.26 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted 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-2018-10772 is a vulnerability in Exiv2 through 0.26, a library used to process image metadata. A crafted file can crash an application that parses it. The public record also says unspecified other impact may be possible, but does not provide enough evidence to rate that broader impact confidently.

Executive priority

Prioritize this as a patch and exposure-management item, especially for services processing untrusted files. The known impact is application crash, which can affect availability. Urgency should increase if affected Exiv2 versions are in internet-facing upload or automated media-processing paths.

Technical view

The issue is in the tEXtToDataBuf function in pngimage.cpp in Exiv2 through 0.26. Public CVE text describes attacker-controlled crafted file handling leading to denial of service through application crash, with possible unspecified additional impact. No CVSS, CWE, or detailed exploit prerequisites are provided in the source bundle.

Likely exposure

Exposure is most likely where Exiv2 through 0.26 is used to parse untrusted image files, including user-upload, email, content-management, or media-processing workflows. The bundle does not enumerate specific downstream products, so inventory should focus on installed Exiv2 packages and applications that depend on them.

Exploitation context

The CVE states remote attackers can trigger the issue with a crafted file. The source bundle does not show CISA KEV listing, active exploitation, public exploit maturity, or reliable exploitation beyond denial of service. Treat active exploitation as unconfirmed.

Researcher notes

The evidence is sparse: no CVSS, CWE, exploit status, or fixed upstream version is included in the bundle. Analysis should stay anchored to Exiv2 through 0.26, pngimage.cpp tEXtToDataBuf, crafted-file denial of service, and Red Hat advisory tracking.

Mitigation direction

  • Identify systems using Exiv2 through 0.26 or older distribution packages.
  • Apply vendor updates, including relevant Red Hat guidance in RHSA-2019:2101 where applicable.
  • Restrict untrusted image parsing until affected packages are updated.
  • Run image-processing workloads with least privilege and restart isolation.
  • Monitor vendor advisories for affected package and fixed-version details.

Validation and detection

  • Inventory Exiv2 package versions across servers, workstations, containers, and build images.
  • Check whether internet-facing workflows parse untrusted PNG or image metadata.
  • Review application dependencies for bundled or statically linked Exiv2 copies.
  • Confirm vendor advisory updates are installed and tracked in patch records.
  • Look for crash telemetry tied to image metadata processing.
Prepared
Confidence
medium
Sources
4

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2018-10772 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
3Source 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.