Vulnerability Name:

CVE-2011-4957 (CCN-66615)

Assigned:2011-03-05
Published:2011-03-05
Updated:2012-06-28
Summary:The make_clickable function in wp-includes/formatting.php in WordPress before 3.1.1 does not properly check URLs before passing them to the PCRE library, which allows remote attackers to cause a denial of service (crash) via a comment with a crafted URL that triggers many recursive calls.
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:N/A:L)
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): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/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): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: CONFIRM
Type: UNKNOWN
http://core.trac.wordpress.org/ticket/16892

Source: MITRE
Type: CNA
CVE-2011-4957

Source: CCN
Type: SA44038
WordPress Cross-Site Scripting and Denial of Service Vulnerabilities

Source: SECUNIA
Type: Vendor Advisory
44038

Source: SECUNIA
Type: Vendor Advisory
49138

Source: CCN
Type: WordPress Web Site
WordPress 3.1.1

Source: CONFIRM
Type: UNKNOWN
http://wordpress.org/news/2011/04/wordpress-3-1-1/

Source: DEBIAN
Type: UNKNOWN
DSA-2470

Source: DEBIAN
Type: DSA-2470
wordpress -- several vulnerabilities

Source: MLIST
Type: UNKNOWN
[oss-security] 20120419 Re: CVE-request: WordPress 3.1.1

Source: MLIST
Type: UNKNOWN
[oss-security] 20120419 Re: CVE-request: WordPress 3.1.1

Source: CCN
Type: OSVDB ID: 72142
WordPress wp-includes/formatting.php make_clickable() PCRE Library Remote DoS

Source: CCN
Type: BID-47187
WordPress Multiple Security Vulnerabilities

Source: XF
Type: UNKNOWN
wordpress-formatting-dos(66615)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:wordpress:wordpress:0.71:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.0:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.0.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2.4:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2.5:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.2.5:a:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.5:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.5.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.5.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.5.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.5.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:1.5.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.4:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.5:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.6:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.7:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.8:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.9:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.10:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.0.11:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.1.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.1.3:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.2:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.2.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.3:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.3.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.3.2:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.5:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.5.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.6:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.6.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.6.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.6.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.6.5:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.7:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.7.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.4:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.4:a:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.5:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.5.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.5.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.8.6:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.9:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.9.1:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.9.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:2.9.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0:-:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0.3:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0.4:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0.5:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:3.0.6:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:*:*:*:*:*:*:*:* (Version <= 3.1)

    • Configuration CCN 1:
  • cpe:/a:wordpress:wordpress:3.1:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:20209
    P
    		DSA-2470-1 wordpress - several
    2014-06-23
    oval:com.ubuntu.precise:def:20114957000
    V
    		CVE-2011-4957 on Ubuntu 12.04 LTS (precise) - medium.
    2012-06-27
    BACK
    wordpress wordpress 0.71
    wordpress wordpress 1.0
    wordpress wordpress 1.0.1
    wordpress wordpress 1.0.2
    wordpress wordpress 1.1.1
    wordpress wordpress 1.2
    wordpress wordpress 1.2.1
    wordpress wordpress 1.2.2
    wordpress wordpress 1.2.3
    wordpress wordpress 1.2.4
    wordpress wordpress 1.2.5
    wordpress wordpress 1.2.5 a
    wordpress wordpress 1.3
    wordpress wordpress 1.3.2
    wordpress wordpress 1.3.3
    wordpress wordpress 1.5
    wordpress wordpress 1.5.1
    wordpress wordpress 1.5.1.1
    wordpress wordpress 1.5.1.2
    wordpress wordpress 1.5.1.3
    wordpress wordpress 1.5.2
    wordpress wordpress 2.0
    wordpress wordpress 2.0.1
    wordpress wordpress 2.0.2
    wordpress wordpress 2.0.4
    wordpress wordpress 2.0.5
    wordpress wordpress 2.0.6
    wordpress wordpress 2.0.7
    wordpress wordpress 2.0.8
    wordpress wordpress 2.0.9
    wordpress wordpress 2.0.10
    wordpress wordpress 2.0.11
    wordpress wordpress 2.1
    wordpress wordpress 2.1.1
    wordpress wordpress 2.1.2
    wordpress wordpress 2.1.3
    wordpress wordpress 2.2
    wordpress wordpress 2.2.1
    wordpress wordpress 2.2.2
    wordpress wordpress 2.2.3
    wordpress wordpress 2.3
    wordpress wordpress 2.3.1
    wordpress wordpress 2.3.2
    wordpress wordpress 2.3.3
    wordpress wordpress 2.5
    wordpress wordpress 2.5.1
    wordpress wordpress 2.6
    wordpress wordpress 2.6.1
    wordpress wordpress 2.6.2
    wordpress wordpress 2.6.3
    wordpress wordpress 2.6.5
    wordpress wordpress 2.7
    wordpress wordpress 2.7.1
    wordpress wordpress 2.8
    wordpress wordpress 2.8.1
    wordpress wordpress 2.8.2
    wordpress wordpress 2.8.3
    wordpress wordpress 2.8.4
    wordpress wordpress 2.8.4 a
    wordpress wordpress 2.8.5
    wordpress wordpress 2.8.5.1
    wordpress wordpress 2.8.5.2
    wordpress wordpress 2.8.6
    wordpress wordpress 2.9
    wordpress wordpress 2.9.1
    wordpress wordpress 2.9.1.1
    wordpress wordpress 2.9.2
    wordpress wordpress 3.0
    wordpress wordpress 3.0.1
    wordpress wordpress 3.0.2
    wordpress wordpress 3.0.3
    wordpress wordpress 3.0.4
    wordpress wordpress 3.0.5
    wordpress wordpress 3.0.6
    wordpress wordpress *
    wordpress wordpress 3.1