Security readout for executives and security teams
Plain-English summary
This CVE describes a memory-safety bug in HHVM before 3.12.11. The public bundle does not state the business impact, CVSS score, or active exploitation. Organizations should care if legacy HHVM still runs production PHP/Hack services, especially internet-facing workloads.
Executive priority
Prioritize this as legacy runtime hygiene unless inventory shows HHVM before 3.12.11 on exposed or business-critical systems. Lack of severity data means urgency depends heavily on where HHVM is deployed.
Technical view
HHVM before 3.12.11 has a use-after-free in serialize_memoize_param() and ResourceBundle::__construct(). The sources do not provide CWE mapping, exploitability details, or confirmed attack outcomes. Treat affected runtime versions as unsafe until upgraded or otherwise addressed by vendor package guidance.
Likely exposure
Exposure is likely limited to environments still running HHVM versions earlier than 3.12.11, including old distro packages, containers, or legacy application hosts. The source bundle does not identify broader affected products.
Exploitation context
No KEV listing is present, and the provided sources do not document active exploitation. The vulnerability class is memory safety, but the bundle does not prove remote code execution, denial of service, or exploit availability.
Researcher notes
The record is sparse: no CVSS, CWE, exploit status, or detailed impact is provided. Focus validation on version evidence and package provenance. Do not infer exploitability beyond the stated use-after-free without additional vendor or researcher sources.
Mitigation direction
- Inventory HHVM installations across hosts, containers, and build images.
- Upgrade HHVM to 3.12.11 or a vendor-provided fixed package.
- Check Debian and Ubuntu tracker status for distribution-specific package guidance.
- Retire or isolate unused legacy HHVM services.
- Review vendor advisories before applying compensating controls.
Validation and detection
- Confirm the running HHVM version is not earlier than 3.12.11.
- Check package manager records for hhvm package versions.
- Inspect container images and deployment manifests for bundled HHVM runtimes.
- Verify production services no longer depend on vulnerable HHVM builds.
- Document distro tracker status for any remaining exception.
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-2016-1000006 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://security-tracker.debian.org/tracker/CVE-2016-1000006CVE reference · x_refsource_MISC
- https://www.mail-archive.com/debian-devel-changes%40lists.debian.org/msg506329.htmlCVE reference · x_refsource_MISC
- https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1000006.htmlCVE 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.