9.8
CRITICAL
CVE-2016-5270
Mozilla Firefox/Firefox ESR/Thunderbird Heap-Based Buffer Overflow Vulnerability
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.

INFO

Published Date :

Sept. 22, 2016, 10:59 p.m.

Last Modified :

June 12, 2018, 1:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2016-5270 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2016-5270 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla firefox
2 Mozilla firefox_esr

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Canonical source for Mozilla Foundation Security Advisories. http://www.mozilla.org/security/announce/

Python Shell

Updated: 1 week, 5 days ago
19 stars 31 fork 31 watcher
Born at : July 3, 2014, 8:16 p.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-5270 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-5270 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jun. 12, 2018

    Action Type Old Value New Value
    Changed Description Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49.0 and Firefox ESR 45.x before 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. 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.
    Added Reference https://www.mozilla.org/security/advisories/mfsa2016-88/ [No Types Assigned]
    Added Reference https://www.mozilla.org/security/advisories/mfsa2016-86/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-1912.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 30, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1036852 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 01, 2017

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201701-15 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 18, 2017

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2016/dsa-3674 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/93049 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 27, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
  • Modified Analysis by [email protected]

    Sep. 23, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:mozilla:firefox_esr:45.1.0:*:*:*:*:*:*:* *cpe:2.3:a:mozilla:firefox_esr:45.1.1:*:*:*:*:*:*:* *cpe:2.3:a:mozilla:firefox_esr:45.2.0:*:*:*:*:*:*:* *cpe:2.3:a:mozilla:firefox_esr:45.3.0:*:*:*:*:*:*:* *cpe:2.3:a:mozilla:firefox:48.0.2:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1291016 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1291016 Issue Tracking
    Changed Reference Type http://www.mozilla.org/security/announce/2016/mfsa2016-85.html No Types Assigned http://www.mozilla.org/security/announce/2016/mfsa2016-85.html Vendor Advisory
    Added CWE CWE-787
    Added CWE CWE-119
  • Initial Analysis by [email protected]

    Sep. 23, 2016

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-5270 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

4.40 }} 0.49%

score

0.91528

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability