CVE-2016-5261

Published: Aug 5, 2016Modified: May 6, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Mozilla: Firefox

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Mozilla Firefox	Up to 47.0.1

Related CWEs

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (24)

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html

Source: security@mozilla.org

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html

Source: security@mozilla.org

http://rhn.redhat.com/errata/RHSA-2016-1912.html

Source: security@mozilla.org

http://www.debian.org/security/2016/dsa-3674

Source: security@mozilla.org

http://www.mozilla.org/security/announce/2016/mfsa2016-75.html

Source: security@mozilla.org

Vendor Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Source: security@mozilla.org

http://www.securityfocus.com/bid/92260

Source: security@mozilla.org

http://www.securitytracker.com/id/1036508

Source: security@mozilla.org

http://www.ubuntu.com/usn/USN-3044-1

Source: security@mozilla.org

https://bugzilla.mozilla.org/show_bug.cgi?id=1287266

Source: security@mozilla.org

Issue TrackingPermissions Required

https://security.gentoo.org/glsa/201701-15

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2016-86/

Source: security@mozilla.org

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://rhn.redhat.com/errata/RHSA-2016-1912.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.debian.org/security/2016/dsa-3674

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.mozilla.org/security/announce/2016/mfsa2016-75.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/92260

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securitytracker.com/id/1036508

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.ubuntu.com/usn/USN-3044-1

Source: af854a3a-2127-422b-91ae-364da2661108

https://bugzilla.mozilla.org/show_bug.cgi?id=1287266

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPermissions Required

https://security.gentoo.org/glsa/201701-15

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.mozilla.org/security/advisories/mfsa2016-86/

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.