CVE-2015-1242

high

Published 2015-04-19 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

7.5

Description

The ReduceTransitionElementsKind function in hydrogen-check-elimination.cc in Google V8 before 4.2.77.8, as used in Google Chrome before 42.0.2311.90, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted JavaScript code that leverages "type confusion" in the check-elimination optimization.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status
ubuntu	14.04	affected
ubuntu	14.10	affected
ubuntu	15.04	affected
debian	8.0	affected

Application impact

Vendor	Product	Versions	Fixed
google	v8	`{"endIncluding":"4.2.77.7"}`
google	chrome	`{"endIncluding":"42.0.2311.60"}`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.