Vulnerability Details : CVE-2015-7327
Mozilla Firefox before 41.0 does not properly restrict the availability of High Resolution Time API times, which allows remote attackers to track last-level cache access, and consequently obtain sensitive information, via crafted JavaScript code that makes performance.now calls.
Vulnerability category: Information leak
Products affected by CVE-2015-7327
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-7327
0.42%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-7327
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST |
CWE ids for CVE-2015-7327
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-7327
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http://arxiv.org/abs/1502.07373
[1502.07373] The Spy in the Sandbox -- Practical Cache Attacks in JavascriptExploit
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https://bugzilla.mozilla.org/show_bug.cgi?id=1167489
1167489 - "Spy in the Sandbox" - Security issue related to High Resolution Time API
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https://bugzilla.mozilla.org/show_bug.cgi?id=1153672
1153672 - Fingerprinting individuals via performance.now()
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http://www.securitytracker.com/id/1033640
Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, Bypass Security Restrictions, and Gain Elevated Privileges - SecurityTracker
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http://www.mozilla.org/security/announce/2015/mfsa2015-114.html
Information disclosure via the High Resolution Time API — MozillaVendor Advisory
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