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CVE-2014-10077: Hash#slice in lib/i18n/core_ext/hash.rb in the i18n gem before 0.8.0 for Ruby allows remote attackers to ca...

Hash#slice in lib/i18n/core_ext/hash.rb in the i18n gem before 0.8.0 for Ruby allows remote attackers to cause a denial of service (application crash) via a call in a situation where :some_key is present in keep_keys but not present in the hash.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This affects Ruby applications using the i18n gem before 0.8.0. A specific Hash#slice edge case can crash the application, causing denial of service. Business risk depends on whether untrusted input can reach the vulnerable call pattern. Sources do not show data theft, code execution, or confirmed active exploitation.

Executive priority

Treat this as a legacy dependency denial-of-service issue. It is not evidenced as actively exploited, but internet-facing or business-critical Ruby services using old i18n versions should be remediated during normal vulnerability maintenance.

Technical view

Hash#slice in lib/i18n/core_ext/hash.rb mishandled a keep_keys entry that was requested but absent from the hash, leading to an application crash. The issue is documented as fixed before i18n 0.8.0, with a Debian ruby-i18n security update also referenced. Validation should focus on installed gem versions and reachable application paths.

Likely exposure

Exposure is most likely in legacy Ruby applications or systems packaging ruby-i18n with versions before 0.8.0. The provided sources do not identify specific applications beyond the i18n gem and Debian ruby-i18n package context.

Exploitation context

The CVE description says remote attackers may trigger denial of service in a specific call situation. The source bundle does not include KEV listing, public exploit confirmation, or evidence of active exploitation in the wild.

Researcher notes

The bundle lacks CVSS, CWE, and detailed exploit prerequisites. Analysis should avoid assuming broad reachability. The important technical question is whether application-controlled data can cause Hash#slice to request keys absent from the target hash.

Mitigation direction

  • Upgrade the i18n gem to version 0.8.0 or later where compatible.
  • Apply vendor package updates for ruby-i18n on supported operating systems.
  • Check vendor guidance before backporting fixes to unsupported legacy versions.
  • Prioritize exposed services where user input may influence i18n hash handling.

Validation and detection

  • Inventory Ruby applications and packages for i18n versions before 0.8.0.
  • Review lockfiles, package manifests, and deployed gem versions for ruby-i18n.
  • Confirm whether vulnerable code paths are reachable from remote requests.
  • Check logs for unexplained application crashes around translation or parameter handling.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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