Security readout for executives and security teams
This CVE is a denial-of-service flaw in old Ruby/CRuby hash handling. Ruby versions before 1.8.7-p357 could spend excessive CPU processing attacker-supplied data designed to collide inside hash tables. Business impact is service slowdown or outage in applications still running those obsolete runtimes. Exposure is most likely in legacy Ruby 1.8.7 deployments below patchlevel 357, especially internet-facing web applications that parse user-controlled parameters into hashes. Modern Ruby versions are not identified as affected in the supplied bundle. Treat this as a legacy-platform availability risk. It is not presented as active exploitation or data compromise, but exposed obsolete Ruby services could be disrupted. Remediation priority should rise for public-facing revenue, authentication, or customer-support applications. Mitigation focus: Upgrade Ruby/CRuby to 1.8.7-p357 or a later supported version.; Apply relevant operating system vendor updates, such as listed Red Hat or Apple advisories.; Inventory applications still running Ruby 1.8.7 or vendor-packaged Ruby from 2011-era releases..
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
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ATT&CK lookup starting points
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CVE-2011-4815 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
- ruby-hash-dos(72020)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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