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4.0
MEDIUM CVSS 2.0
CVE-2014-9403
ZNC Denial of Service Remote Authentication Vulnerability
Description

The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) by adding a channel with the same name as an existing channel but without the leading # character, related to a "use-after-delete" error.

INFO

Published Date :

Dec. 19, 2014, 3:59 p.m.

Last Modified :

April 12, 2025, 10:46 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2014-9403 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 Znc znc
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
Solution
To address the ZNC denial of service vulnerability, update to the latest version of ZNC.
  • Update ZNC to the latest version.
  • If necessary, consult your operating system's package manager for update instructions.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2014-9403.

URL Resource
http://advisories.mageia.org/MGASA-2014-0543.html
http://secunia.com/advisories/57795
http://www.mandriva.com/security/advisories?name=MDVSA-2015:013
http://www.openwall.com/lists/oss-security/2014/12/18/2
http://www.securityfocus.com/bid/66926
https://github.com/znc/znc/blob/master/ChangeLog.md
https://github.com/znc/znc/issues/528 Vendor Advisory
http://advisories.mageia.org/MGASA-2014-0543.html
http://secunia.com/advisories/57795
http://www.mandriva.com/security/advisories?name=MDVSA-2015:013
http://www.openwall.com/lists/oss-security/2014/12/18/2
http://www.securityfocus.com/bid/66926
https://github.com/znc/znc/blob/master/ChangeLog.md
https://github.com/znc/znc/issues/528 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2014-9403 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2014-9403 weaknesses.

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).

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

The following list is the news that have been mention CVE-2014-9403 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2014-9403 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://advisories.mageia.org/MGASA-2014-0543.html
    Added Reference http://secunia.com/advisories/57795
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2015:013
    Added Reference http://www.openwall.com/lists/oss-security/2014/12/18/2
    Added Reference http://www.securityfocus.com/bid/66926
    Added Reference https://github.com/znc/znc/blob/master/ChangeLog.md
    Added Reference https://github.com/znc/znc/issues/528
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Mar. 26, 2015

    Action Type Old Value New Value
    Added Reference http://advisories.mageia.org/MGASA-2014-0543.html
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2015:013
  • Modified Analysis by [email protected]

    Dec. 22, 2014

    Action Type Old Value New Value
    Added Evaluator Description <a href="http://cwe.mitre.org/data/definitions/476.html">CWE-476: NULL Pointer Dereference</a>
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:znc:znc:1.2:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:N/A:P)
    Changed Reference Type https://github.com/znc/znc/issues/528 No Types Assigned https://github.com/znc/znc/issues/528 Advisory
    Added CWE NVD-CWE-Other
  • Initial Analysis by [email protected]

    Dec. 22, 2014

    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.
Vulnerability Scoring Details
Base CVSS Score: 4
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

1.27 }} 0.13%

score

0.77746

percentile