SARA / Free Tools / CVE / CVE-2017-5402

CVE-2017-5402 — A use-after-free can occur when events are fired for a "FontFace" object after t

A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunde

CVSS
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EPSS
2.50% (top 14.90%)
CWE
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Published
2018-06-11T21:00:00.000Z
Last modified
2024-08-05T14:55:35.918Z
CVSS vector
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01What is this vulnerability?

A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

02Affected products

VendorProductVersions
MozillaFirefoxunspecified
MozillaFirefox ESRunspecified
MozillaThunderbirdunspecified, unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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