5.0
MEDIUM
CVE-2012-0841
Libxml2 Hash Collision DoS Vulnerability
Description

libxml2 before 2.8.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data.

INFO

Published Date :

Dec. 21, 2012, 5:46 a.m.

Last Modified :

Nov. 21, 2024, 1:35 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2012-0841 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 Xmlsoft libxml2
1 Apple iphone_os
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-2012-0841.

URL Resource
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660846
http://git.gnome.org/browse/libxml2/commit/?id=8973d58b7498fa5100a876815476b81fd1a2412a
http://lists.apple.com/archives/security-announce/2013/Oct/msg00009.html
http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
http://rhn.redhat.com/errata/RHSA-2012-0324.html
http://rhn.redhat.com/errata/RHSA-2013-0217.html
http://secunia.com/advisories/54886
http://secunia.com/advisories/55568
http://securitytracker.com/id?1026723
http://support.apple.com/kb/HT5934
http://support.apple.com/kb/HT6001
http://www.debian.org/security/2012/dsa-2417
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
http://www.openwall.com/lists/oss-security/2012/02/22/1
http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
http://www.securityfocus.com/bid/52107 Patch
http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
http://xmlsoft.org/news.html
https://blogs.oracle.com/sunsecurity/entry/cve_2012_0841_denial_of
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660846
http://git.gnome.org/browse/libxml2/commit/?id=8973d58b7498fa5100a876815476b81fd1a2412a
http://lists.apple.com/archives/security-announce/2013/Oct/msg00009.html
http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
http://rhn.redhat.com/errata/RHSA-2012-0324.html
http://rhn.redhat.com/errata/RHSA-2013-0217.html
http://secunia.com/advisories/54886
http://secunia.com/advisories/55568
http://securitytracker.com/id?1026723
http://support.apple.com/kb/HT5934
http://support.apple.com/kb/HT6001
http://www.debian.org/security/2012/dsa-2417
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
http://www.openwall.com/lists/oss-security/2012/02/22/1
http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
http://www.securityfocus.com/bid/52107 Patch
http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
http://xmlsoft.org/news.html
https://blogs.oracle.com/sunsecurity/entry/cve_2012_0841_denial_of

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-2012-0841 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2012-0841 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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660846
    Added Reference http://git.gnome.org/browse/libxml2/commit/?id=8973d58b7498fa5100a876815476b81fd1a2412a
    Added Reference http://lists.apple.com/archives/security-announce/2013/Oct/msg00009.html
    Added Reference http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0324.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2013-0217.html
    Added Reference http://secunia.com/advisories/54886
    Added Reference http://secunia.com/advisories/55568
    Added Reference http://securitytracker.com/id?1026723
    Added Reference http://support.apple.com/kb/HT5934
    Added Reference http://support.apple.com/kb/HT6001
    Added Reference http://www.debian.org/security/2012/dsa-2417
    Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
    Added Reference http://www.openwall.com/lists/oss-security/2012/02/22/1
    Added Reference http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
    Added Reference http://www.securityfocus.com/bid/52107
    Added Reference http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
    Added Reference http://xmlsoft.org/news.html
    Added Reference https://blogs.oracle.com/sunsecurity/entry/cve_2012_0841_denial_of
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Feb. 13, 2023

    Action Type Old Value New Value
    Changed Description CVE-2012-0841 libxml2: hash table collisions CPU usage DoS libxml2 before 2.8.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data.
    Removed CVSS V2 Red Hat, Inc. (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Removed Reference https://access.redhat.com/errata/RHSA-2012:0324 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2013:0217 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2012-0841 [No Types Assigned]
    Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=787067 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description libxml2 before 2.8.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data. CVE-2012-0841 libxml2: hash table collisions CPU usage DoS
    Added CVSS V2 Red Hat, Inc. (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added Reference https://access.redhat.com/errata/RHSA-2012:0324 [No Types Assigned]
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=787067 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2013:0217 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2012-0841 [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 26, 2013

    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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2012-0841 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-2012-0841 weaknesses.

Exploit Prediction

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

0.41 }} -1.91%

score

0.58691

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability