CVE-2017-5447

CRITICAL 9.1CVE-2017-5447 · Published 11/06/2018 · updated 17/06/2026

Package	Affected versions	Patched versions
firefox mozilla	`= 52.0< 45.9.0< 53.0`	`45.9.053.0`
thunderbird mozilla	`< 52.1.0`	`52.1.0`

Description

An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

References

securityfocus.com/bid/97940 · Third Party Advisory
securitytracker.com/id/1038320 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1104 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1106 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1201 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Exploit
debian.org/security/2017/dsa-3831 · Third Party Advisory
exploit-db.com/exploits/42071 · Exploit
mozilla.org/security/advisories/mfsa2017-10 · Vendor Advisory
mozilla.org/security/advisories/mfsa2017-11 · Vendor Advisory
mozilla.org/security/advisories/mfsa2017-12 · Vendor Advisory
mozilla.org/security/advisories/mfsa2017-13 · Vendor Advisory

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