Security readout for executives and security teams
Plain-English summary
This flaw affects MiniUPnP ngiflib 0.4 GIF parsing. A malicious GIF can trigger a heap-based buffer overflow and crash the application processing it. The public record mainly supports denial of service risk; broader impact is described only as possible and unspecified.
Executive priority
Treat as a targeted availability risk for systems that process untrusted GIFs. Prioritize internet-facing upload, messaging, media, or scanning workflows using ngiflib 0.4.
Technical view
DecodeGifImg in ngiflib.c lacks certain width and height checks. Crafted GIF dimensions can lead WritePixels into a heap-based buffer overflow, causing application crash. The source bundle does not provide CVSS, CWE, CPE, or confirmed code execution evidence.
Likely exposure
Exposure is most likely in applications embedding MiniUPnP ngiflib 0.4 and accepting remote or user-supplied GIF files. The source bundle does not identify downstream products or package ecosystems.
Exploitation context
The record describes remote attack via crafted GIF file. There is no KEV listing and no cited source in the bundle confirms active exploitation in the wild.
Researcher notes
Evidence is sparse: the CVE description, GitHub issue, and commit support a missing dimension-check defect and heap overflow crash. The record lacks CVSS, CWE, CPE, and confirmed affected downstream products.
Mitigation direction
- Inventory applications and libraries using MiniUPnP ngiflib 0.4.
- Review upstream issue and commit for vendor-approved remediation direction.
- Upgrade or backport the upstream fix if confirmed applicable by maintainers.
- Limit untrusted GIF processing until affected components are remediated.
- Monitor application crash telemetry around GIF upload or decoding paths.
Validation and detection
- Confirm whether ngiflib 0.4 is present in source, builds, or bundled dependencies.
- Identify routes, services, or tools that decode externally supplied GIF files.
- Check whether width and height validation from the upstream fix is present.
- Review crash reports for GIF parsing failures in affected services.
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-2018-10677 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://github.com/miniupnp/ngiflib/commit/b588a2249c7abbfc52173e32ee11d6facef82f89CVE reference · x_refsource_CONFIRM
- https://github.com/miniupnp/ngiflib/issues/1CVE reference · x_refsource_CONFIRM
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.