CVE-2015-1242
CVE-2015-1242 is a high-severity vulnerability in Google V8 with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Google V8
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2015-1242?
- 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.
- How severe is CVE-2015-1242?
- CVE-2015-1242 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2015-1242 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-1242?
- CVE-2015-1242 primarily affects Google V8. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-1242?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2015-1242 published?
- CVE-2015-1242 was published on 2015-04-19 and last updated on 2026-06-17.
References
- http://googlechromereleases.blogspot.com/2015/04/stable-channel-update_14.html
- http://lists.opensuse.org/opensuse-updates/2015-04/msg00040.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00024.html
- http://rhn.redhat.com/errata/RHSA-2015-0816.html
- http://ubuntu.com/usn/usn-2570-1
- http://www.debian.org/security/2015/dsa-3238
- http://www.securitytracker.com/id/1032209
- https://code.google.com/p/chromium/issues/detail?id=460917
- https://codereview.chromium.org/1000893003
- https://codereview.chromium.org/1019033004
- https://security.gentoo.org/glsa/201506-04
Affected products (6)
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:a:google:v8:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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