NVD

CVE-2013-2099 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 4.3 MEDIUM

Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P)

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink	Resource
http://bugs.python.org/issue17980	Patch
http://bugs.python.org/issue17980	Patch
http://rhn.redhat.com/errata/RHSA-2014-1690.html
http://rhn.redhat.com/errata/RHSA-2014-1690.html
http://secunia.com/advisories/55107	Vendor Advisory
http://secunia.com/advisories/55107	Vendor Advisory
http://secunia.com/advisories/55116	Vendor Advisory
http://secunia.com/advisories/55116	Vendor Advisory
http://www.openwall.com/lists/oss-security/2013/05/16/6
http://www.openwall.com/lists/oss-security/2013/05/16/6
http://www.ubuntu.com/usn/USN-1983-1
http://www.ubuntu.com/usn/USN-1983-1
http://www.ubuntu.com/usn/USN-1984-1
http://www.ubuntu.com/usn/USN-1984-1
http://www.ubuntu.com/usn/USN-1985-1
http://www.ubuntu.com/usn/USN-1985-1
https://access.redhat.com/errata/RHSA-2016:1166
https://access.redhat.com/errata/RHSA-2016:1166
https://bugzilla.redhat.com/show_bug.cgi?id=963260
https://bugzilla.redhat.com/show_bug.cgi?id=963260

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-399	Resource Management Errors	NIST

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found show changes

CVE Modified by CVE 11/20/2024 8:51:01 PM

Action	Type	New Value
Added	Reference	http://bugs.python.org/issue17980
Added	Reference	http://rhn.redhat.com/errata/RHSA-2014-1690.html
Added	Reference	http://secunia.com/advisories/55107
Added	Reference	http://secunia.com/advisories/55116
Added	Reference	http://www.openwall.com/lists/oss-security/2013/05/16/6
Added	Reference	http://www.ubuntu.com/usn/USN-1983-1
Added	Reference	http://www.ubuntu.com/usn/USN-1984-1
Added	Reference	http://www.ubuntu.com/usn/USN-1985-1
Added	Reference	https://access.redhat.com/errata/RHSA-2016:1166
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=963260

CVE Modified by Red Hat, Inc. 2/12/2023 11:42:49 PM

Action	Type	Old Value	New Value
Changed	Description	A denial of service flaw was found in the way Python's SSL module implementation performed matching of certain certificate names. A remote attacker able to obtain a valid certificate that contained multiple wildcard characters could use this flaw to issue a request to validate such a certificate, resulting in excessive consumption of CPU.	Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.
Removed	CVSS V2	Red Hat, Inc. (AV:N/AC:H/Au:N/C:N/I:N/A:P)
Removed	Reference	https://access.redhat.com/errata/RHBA-2016:1500 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2014:1263 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2014:1690 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2015:0042 [No Types Assigned]
Removed	Reference	https://access.redhat.com/security/cve/CVE-2013-2099 [No Types Assigned]

CVE Modified by Red Hat, Inc. 2/02/2023 1:17:39 PM

Action	Type	Old Value	New Value
Changed	Description	Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.	A denial of service flaw was found in the way Python's SSL module implementation performed matching of certain certificate names. A remote attacker able to obtain a valid certificate that contained multiple wildcard characters could use this flaw to issue a request to validate such a certificate, resulting in excessive consumption of CPU.
Added	CVSS V2		Red Hat, Inc. (AV:N/AC:H/Au:N/C:N/I:N/A:P)
Added	Reference		https://access.redhat.com/errata/RHBA-2016:1500 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2014:1263 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2014:1690 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2015:0042 [No Types Assigned]
Added	Reference		https://access.redhat.com/security/cve/CVE-2013-2099 [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2013-2099
NVD Published Date:
10/09/2013
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.

You are viewing this page in an unauthorized frame window.

Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2013-2099 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/20/2024 8:51:01 PM

CVE Modified by Red Hat, Inc. 5/13/2024 10:55:07 PM

CVE Modified by Red Hat, Inc. 2/12/2023 11:42:49 PM

CVE Modified by Red Hat, Inc. 2/02/2023 1:17:39 PM

CVE Modified by Red Hat, Inc. 6/08/2016 9:59:01 PM

CVE Modified by Red Hat, Inc. 12/02/2014 9:59:49 PM

Initial CVE Analysis 10/09/2013 11:23:48 AM

Quick Info