5.0
MEDIUM CVSS 2.0
CVE-2012-2921
Universal Feed Parser XML Entity Declaration Remote Denial of Service Vulnerability
Description

Universal Feed Parser (aka feedparser or python-feedparser) before 5.1.2 allows remote attackers to cause a denial of service (memory consumption) via a crafted XML ENTITY declaration in a non-ASCII encoded document.

INFO

Published Date :

May 21, 2012, 10:55 p.m.

Last Modified :

April 11, 2025, 12:51 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2012-2921 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 Mark_pilgrim feedparser
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
Update the Universal Feed Parser to address a denial of service vulnerability.
  • Update the affected python-feedparser package.
  • Update the affected python3-feedparser package (if applicable).
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2012-2921 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-2012-2921 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-2012-2921 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2012-2921 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://freecode.com/projects/feedparser/releases/344371
    Added Reference http://osvdb.org/81701
    Added Reference http://secunia.com/advisories/49256
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2013:118
    Added Reference http://www.securityfocus.com/bid/53654
    Added Reference https://code.google.com/p/feedparser/source/browse/trunk/NEWS?spec=svn706&r=706
    Added Reference https://code.google.com/p/feedparser/source/detail?r=703&path=/trunk/feedparser/feedparser.py
    Added Reference https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0157
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 22, 2012

    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: 5
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.

1.26 }} 0.08%

score

0.77549

percentile