CVE-2017-7782 Information

Description

An error in the \WindowsDllDetourPatcher\ where a RWX (\Read/Write/Execute) 4k block is allocated but never protected violating DEP protections. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Thunderbird 52.3 Firefox ESR 52.3 and Firefox 55.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Reference

http://www.securityfocus.com/bid/100243 http://www.securitytracker.com/id/1039124 https://bugzilla.mozilla.org/show_bug.cgi?id=1344034 https://www.mozilla.org/security/advisories/mfsa2017-18/ https://www.mozilla.org/security/advisories/mfsa2017-19/ https://www.mozilla.org/security/advisories/mfsa2017-20/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

5.3