Vulnerability CVE-2016-5270
Published: 2016-09-22   Modified: 2016-09-23

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.

Type:

CWE-787

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Mozilla -> Firefox 
Mozilla -> Firefox esr 

 References:
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/
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