CVE-2016-5261 Information

Description

Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html http://rhn.redhat.com/errata/RHSA-2016-1912.html http://www.debian.org/security/2016/dsa-3674 http://www.mozilla.org/security/announce/2016/mfsa2016-75.html http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html http://www.securityfocus.com/bid/92260 http://www.securitytracker.com/id/1036508 http://www.ubuntu.com/usn/USN-3044-1 https://bugzilla.mozilla.org/show_bug.cgi?id=1287266 https://security.gentoo.org/glsa/201701-15 https://www.mozilla.org/security/advisories/mfsa2016-86/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8