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CVE-2017-7756 A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefo...

CriticalCVSS 9.8 EPSS 2.6%
Published
Updated
Exploit status
No public exploit known

Description

A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Affected products

ProductAffected versionsFixed in
debian/firefox-esr(Debian:12) < 52.2.0esr-1 52.2.0esr-1
debian/firefox-esr(Debian:13) < 52.2.0esr-1 52.2.0esr-1
debian/firefox-esr(Debian:14) < 52.2.0esr-1 52.2.0esr-1
mozilla Firefox < 52.2.0 52.2.0
mozilla Firefox < 54.0 54.0
mozilla Thunderbird < 52.2.0 52.2.0
debian linux = 8.0 No fix listed
debian linux = 9.0 No fix listed
mozilla Firefox < 54 54
mozilla firefox esr < 52.2 52.2
mozilla Thunderbird < 52.2 52.2

References