Vulnerability Name:

CVE-2009-5017 (CCN-63259)

Assigned:2009-08-21
Published:2009-08-21
Updated:2010-12-01
Summary:Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
3.2 Low (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.3 Medium (REDHAT CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
3.2 Low (REDHAT Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2009-5017

Source: CONFIRM
Type: UNKNOWN
http://hg.mozilla.org/releases/mozilla-1.9.2/rev/e42c563313a0

Source: CCN
Type: RHSA-2010-0500
Critical: firefox security, bug fix, and enhancement update

Source: CCN
Type: RHSA-2010-0501
Critical: firefox security, bug fix, and enhancement update

Source: MISC
Type: Exploit
http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html

Source: CCN
Type: Mozilla Web site
Firefox - Rediscover the web

Source: CCN
Type: Bugzilla@Mozilla Bug 511859
Utf8ToOneUcs4Char in jsstr.cpp ,overlong UTF-8 seqence detection problem.

Source: CONFIRM
Type: Patch
https://bugzilla.mozilla.org/show_bug.cgi?id=511859

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.mozilla.org/show_bug.cgi?id=522634

Source: XF
Type: UNKNOWN
firefox-utf8-security-bypass(63259)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:firefox:3.6:beta1:*:*:*:*:*:*
  • OR cpe:/a:mozilla:firefox:*:beta2:*:*:*:*:*:* (Version <= 3.6)

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:4:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:4::as:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:4::desktop:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:4::es:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:4::ws:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/o:redhat:enterprise_linux:5:*:*:*:*:*:*:*

    • Configuration RedHat 7:
  • cpe:/o:redhat:enterprise_linux:5::client:*:*:*:*:*

    • Configuration RedHat 8:
  • cpe:/o:redhat:enterprise_linux:5::client_workstation:*:*:*:*:*

    • Configuration RedHat 9:
  • cpe:/o:redhat:enterprise_linux:5::server:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mozilla:firefox:3.6:*:*:*:*:*:*:*
  • AND
  • cpe:/o:redhat:enterprise_linux:4::as:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:4::desktop:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:4::es:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:4::ws:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:5:*:client_workstation:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:5:*:client:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:22794
    P
    		ELSA-2010:0501: firefox security, bug fix, and enhancement update (Critical)
    2014-05-26
    oval:org.mitre.oval:def:21689
    P
    		RHSA-2010:0501: firefox security, bug fix, and enhancement update (Critical)
    2014-02-24
    oval:com.ubuntu.precise:def:20095017000
    V
    		CVE-2009-5017 on Ubuntu 12.04 LTS (precise) - medium.
    2010-11-12
    oval:com.redhat.rhsa:def:20100501
    P
    		RHSA-2010:0501: firefox security, bug fix, and enhancement update (Critical)
    2010-06-25
    oval:com.redhat.rhsa:def:20100500
    P
    		RHSA-2010:0500: firefox security, bug fix, and enhancement update (Critical)
    2010-06-22
    BACK
    mozilla firefox 3.6 beta1
    mozilla firefox * beta2
    mozilla firefox 3.6
    redhat enterprise linux 4
    redhat enterprise linux 4
    redhat enterprise linux 4
    redhat enterprise linux 4
    redhat enterprise linux 5
    redhat enterprise linux 5
    redhat enterprise linux 5