Security readout for executives and security teams
Plain-English summary
CVE-2018-20095 is an availability risk in Bento4 1.5.1-627. A malformed MP4 file can cause the software to request excessive memory, potentially crashing or degrading a media-processing service. The public record does not provide CVSS, CWE, a confirmed fixed version, or evidence of active exploitation.
Executive priority
Treat this as a moderate operational resilience issue if Bento4 handles external media. It is not currently supported as an emergency exploitation case, but exposed processing pipelines could be disrupted by malformed files.
Technical view
The issue is in EnsureCapacity in Core/Ap4Array.h in Bento4 1.5.1-627. Crafted MP4 input can trigger excessive memory allocation, with mp42hls cited as the demonstrated context. Source data does not identify broader affected versions, patch details, or exploitation in the wild.
Likely exposure
Exposure is most likely where Bento4 1.5.1-627, especially mp42hls, processes untrusted or user-supplied MP4 files in batch jobs, upload pipelines, or media conversion services.
Exploitation context
The source bundle cites a GitHub issue demonstrating crafted MP4 input behavior. CISA KEV status is false, and no provided source supports active exploitation or weaponized public exploitation.
Researcher notes
The public data is sparse: no CVSS, CWE, affected CPEs, or patch reference are included. Analysis should focus on confirming actual Bento4 usage, untrusted MP4 ingestion paths, and vendor-side resolution status.
Mitigation direction
- Inventory Bento4 and mp42hls usage across media-processing systems.
- Check the vendor issue and current Bento4 guidance for fixed releases or workarounds.
- Avoid processing untrusted MP4 files until exposure is understood.
- Run media conversion workloads with memory limits and process isolation.
- Prioritize replacement or upgrade if Bento4 1.5.1-627 is confirmed.
Validation and detection
- Confirm whether Bento4 1.5.1-627 is installed or bundled.
- Identify services that process uploaded or third-party MP4 files.
- Review dependency manifests, containers, and build artifacts for Bento4 components.
- Check logs for media-processing crashes or memory exhaustion events.
- Verify vendor guidance before declaring remediation complete.
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-2018-20095 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/axiomatic-systems/Bento4/issues/341CVE 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.