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Mozilla: Use-after-free of PressShell while restyling layout (MFSA 2017-25)

🗓️ 04 Dec 2017 00:10:55Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Use-after-free of PressShell during layout flush and resize can crash Firefox, ESR, and Thunderbird.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6i686thunderbird0:52.5.0-1.el6_9thunderbird-0:52.5.0-1.el6_9.i686.rpm
Red Hat Enterprise Linux6ppc64thunderbird0:52.5.0-1.el6_9thunderbird-0:52.5.0-1.el6_9.ppc64.rpm
Red Hat Enterprise Linux6s390xthunderbird0:52.5.0-1.el6_9thunderbird-0:52.5.0-1.el6_9.s390x.rpm
Red Hat Enterprise Linux6x86_64thunderbird0:52.5.0-1.el6_9thunderbird-0:52.5.0-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux7aarch64thunderbird0:52.5.0-1.el7_4thunderbird-0:52.5.0-1.el7_4.aarch64.rpm
Red Hat Enterprise Linux7ppc64lethunderbird0:52.5.0-1.el7_4thunderbird-0:52.5.0-1.el7_4.ppc64le.rpm
Red Hat Enterprise Linux7x86_64thunderbird0:52.5.0-1.el7_4thunderbird-0:52.5.0-1.el7_4.x86_64.rpm
Red Hat Enterprise Linux6i686thunderbird-debuginfo0:52.5.0-1.el6_9thunderbird-debuginfo-0:52.5.0-1.el6_9.i686.rpm
Red Hat Enterprise Linux6ppc64thunderbird-debuginfo0:52.5.0-1.el6_9thunderbird-debuginfo-0:52.5.0-1.el6_9.ppc64.rpm
Red Hat Enterprise Linux6s390xthunderbird-debuginfo0:52.5.0-1.el6_9thunderbird-debuginfo-0:52.5.0-1.el6_9.s390x.rpm
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25 Nov 2025 18:21Current
7.2High risk
Vulners AI Score7.2
CVSS 27.5
CVSS 39.8
EPSS0.28905
3