CVE-2016-5261
high
CVSS v3
8.8
CVSS v2
7.5
VIR risk
8.8
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.
Predictions
Exploit likelihood
92%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-5261
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-5261.html
Vendor advisory: security@mozilla.org — http://www.mozilla.org/security/announce/2016/mfsa2016-75.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | sid | fixed | 48.0-1 |
| debian | bookworm | fixed | 45.4.0esr-1 |
| debian | bullseye | fixed | 45.4.0esr-1 |
| debian | forky | fixed | 45.4.0esr-1 |
| debian | trixie | fixed | 45.4.0esr-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| mozilla | firefox | {"endIncluding":"47.0.1"} | |
References
- 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/
- https://www.suse.com/security/cve/CVE-2016-5261.html
- https://security-tracker.debian.org/tracker/CVE-2016-5261
CWEs
CWE-190
Verify integrity in audit chain (admin only). AS-IS.