CVE-2016-5270
critical
CVSS v3
9.8
CVSS v2
7.5
VIR risk
9.8
Description
Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to cause a denial of service (boolean out-of-bounds write) or possibly have unspecified other impact via Unicode characters that are mishandled during text conversion.
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-5270
Vendor advisory: security@mozilla.org — http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201609-22
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 49.0-1 | |
| debian | sid | fixed | 49.0-1 |
| 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 |
References
- https://security.archlinux.org/ASA-201609-22
- http://rhn.redhat.com/errata/RHSA-2016-1912.html
- http://www.debian.org/security/2016/dsa-3674
- http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.securityfocus.com/bid/93049
- http://www.securitytracker.com/id/1036852
- https://bugzilla.mozilla.org/show_bug.cgi?id=1291016
- https://security.gentoo.org/glsa/201701-15
- https://www.mozilla.org/security/advisories/mfsa2016-86/
- https://www.mozilla.org/security/advisories/mfsa2016-88/
- https://security-tracker.debian.org/tracker/CVE-2016-5270
CWEs
CWE-119 CWE-787
Verify integrity in audit chain (admin only). AS-IS.