Security readout for executives and security teams
Plain-English summary
CVE-2018-19566 is a memory-reading flaw in dcraw through 9.28. If a malicious image file is processed by dcraw or software that bundles its code, the application may crash or expose private information. The bundle does not identify active exploitation, a CVSS score, or a specific vendor patch.
Executive priority
Prioritize this for systems that process external image uploads or email attachments. For internal-only or non-image-processing environments, urgency is lower but inventory is still warranted because dcraw may be bundled invisibly.
Technical view
The issue is a heap buffer over-read in parse_tiff_ifd in dcraw through 9.28. The reported impact is denial of service through application crash or potential private information disclosure when attacker-controlled files are parsed by dcraw-derived code.
Likely exposure
Exposure is most likely where dcraw through 9.28 is used directly or embedded in applications that accept untrusted image files. The source bundle does not enumerate affected downstream products, package versions, or platforms.
Exploitation context
The source bundle says attackers need to supply malicious files to an affected parser. It does not include KEV evidence or cited confirmation of active exploitation, so active exploitation should not be assumed.
Researcher notes
Evidence is limited to the CVE description and oss-sec references. No CVSS vector, CWE, affected downstream product list, or patch details are present in the supplied bundle. Treat exploitability as file-parser exposure dependent.
Mitigation direction
- Inventory direct dcraw usage and applications that bundle dcraw-derived parsing code.
- Check vendor or package maintainer guidance for fixed versions or replacement recommendations.
- Reduce processing of untrusted image files until exposure is clarified.
- Run image parsing services with least privilege and process isolation where feasible.
Validation and detection
- Search software bills of materials for dcraw and bundled dcraw code references.
- Confirm whether exposed workflows accept user-supplied image files for parsing.
- Review crash telemetry around image parsing components for suspicious malformed-file handling.
- Ask vendors of image-processing products whether they include affected dcraw code.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-19566 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://seclists.org/oss-sec/2018/q4/165CVE reference · x_refsource_MISC
- https://seclists.org/oss-sec/2018/q4/171CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.