Security readout for executives and security teams
Plain-English summary
CVE-2018-7587 is a denial-of-service issue in CImg v.220 when it loads a specially crafted BMP image. If a business application processes untrusted images with this library, an attacker could crash or disrupt that process. The available sources do not indicate data theft, code execution, or confirmed active exploitation.
Executive priority
Treat as a targeted availability risk for image-processing services, not a broad enterprise emergency. Prioritize systems that process external BMP files or customer-uploaded images. Patch or mitigate during normal vulnerability remediation cycles unless the affected service is business-critical or internet-facing.
Technical view
The issue is in CImg.h load_bmp, where a crafted BMP can trigger an allocation failure and cause denial of service. The CVE record identifies CImg v.220. Ubuntu published USN-4039-1 referencing this issue. No CVSS score, CWE, or detailed affected package range is provided in the supplied CVE metadata.
Likely exposure
Exposure is most likely in software that embeds CImg v.220 or affected downstream packages and accepts BMP files from users, partners, email, uploads, or automated image-processing pipelines. Systems that do not process untrusted BMP images have lower practical exposure.
Exploitation context
A public PoC reference exists in the CVE references, but CISA KEV status is false and no cited source states active exploitation. Exploitation requires getting a crafted BMP processed by vulnerable CImg-based code. Impact appears limited to availability based on the supplied description.
Researcher notes
The public metadata is sparse: severity, CVSS, CWE, and precise downstream affected versions are not provided. Avoid assuming remote exploitability unless the application exposes BMP parsing to untrusted users. Public PoC material is referenced, so validation should remain defensive and controlled.
Mitigation direction
- Identify applications and packages using CImg, especially v.220.
- Apply relevant vendor updates, including Ubuntu guidance in USN-4039-1 where applicable.
- Check upstream CImg guidance for fixed versions or recommended changes.
- Restrict or validate untrusted BMP uploads until updates are confirmed.
- Add monitoring for crashes in image-processing services.
Validation and detection
- Inventory CImg usage in application dependencies and system packages.
- Confirm whether BMP parsing via CImg is reachable from untrusted input.
- Check Ubuntu systems against USN-4039-1 package status.
- Review application logs for crashes during BMP processing.
- Verify remediation through package version or vendor advisory confirmation.
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-2018-7587 mapping review
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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://github.com/xiaoqx/pocs/tree/master/cimgCVE reference · x_refsource_MISC
- USN-4039-1CVE reference · vendor-advisory, x_refsource_UBUNTU
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.