CVE-2017-5928

LOWCVSS 3.7/10EPSS 1.75%

Last modified

CVE-2017-5928 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now "Time to Tick" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now "Time to Tick" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.

Metrics

CVSS 3.1
3.7/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability
1.75%

74.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
W3High Resolution Time ApiAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-5928?
The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now "Time to Tick" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.
How severe is CVE-2017-5928?
CVE-2017-5928 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.
How do I fix CVE-2017-5928?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-5928?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST