CVE-2017-7752

high-risk
Published 2018-06-11

A use-after-free vulnerability during specific user interactions with the input method editor (IME) in some languages due to how events are handled. This results in a potentially exploitable crash but would require specific user interaction to trigger. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Do I need to act?

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0.97% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (17)

Affected Vendors

Debian Redhat Mozilla

References (20)

Third Party Advisory http://www.securityfocus.com/bid/99057
Third Party Advisory http://www.securitytracker.com/id/1038689
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:1440
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:1561
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1359547
Third Party Advisory https://www.debian.org/security/2017/dsa-3881
Third Party Advisory https://www.debian.org/security/2017/dsa-3918
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-15/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-16/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-17/
Third Party Advisory http://www.securityfocus.com/bid/99057
Third Party Advisory http://www.securitytracker.com/id/1038689
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:1440
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:1561
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1359547
Third Party Advisory https://www.debian.org/security/2017/dsa-3881
Third Party Advisory https://www.debian.org/security/2017/dsa-3918
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-15/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-16/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-17/
52
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 3/34 · Minimal
Exposure 19/34 · Moderate