4.3
MEDIUM
CVE-2015-7941
Apache libxml2 XML Entity Injection Denial of Service
Description

libxml2 2.9.2 does not properly stop parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and libxml2 crash) via crafted XML data to the (1) xmlParseEntityDecl or (2) xmlParseConditionalSections function in parser.c, as demonstrated by non-terminated entities.

INFO

Published Date :

Nov. 18, 2015, 4:59 p.m.

Last Modified :

Sept. 14, 2017, 1:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

8.6
Public PoC/Exploit Available at Github

CVE-2015-7941 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2015-7941 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 Canonical ubuntu_linux
1 Xmlsoft libxml2
References to Advisories, Solutions, and Tools

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).

A collection of vulnerabilities discovered by the AFL fuzzer (afl-fuzz)

Updated: 3 months, 2 weeks ago
88 stars 16 fork 16 watcher
Born at : Aug. 27, 2015, 12:26 a.m. This repo has been linked 332 different CVEs too.

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

The following list is the news that have been mention CVE-2015-7941 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2015-7941 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 [email protected]

    May. 14, 2024

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

    Sep. 14, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1034243 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 01, 2017

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201701-37 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 07, 2016

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-updates/2015-12/msg00120.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-updates/2016-01/msg00031.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 06, 2016

    Action Type Old Value New Value
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177381.html [No Types Assigned]
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177341.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 30, 2016

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-1089.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/74241 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 15, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
    Added Reference http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
  • CVE Modified by [email protected]

    Aug. 20, 2016

    Action Type Old Value New Value
    Added Reference https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944172
  • CVE Modified by [email protected]

    Jun. 07, 2016

    Action Type Old Value New Value
    Added Reference http://marc.info/?l=bugtraq&m=145382616617563&w=2
  • CVE Modified by [email protected]

    Apr. 13, 2016

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2015/dsa-3430
  • CVE Modified by [email protected]

    Dec. 17, 2015

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2015-2549.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2015-2550.html
    Added Reference http://xmlsoft.org/news.html
  • Modified Analysis by [email protected]

    Nov. 19, 2015

    Action Type Old Value New Value
    Added Evaluator Description "context dependent" seems to point to MiTM attack due to: If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04.
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:xmlsoft:libxml2:2.9.2:*:*:*:*:*:*:*
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CWE CWE-119
  • Initial Analysis by [email protected]

    Nov. 19, 2015

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

    Nov. 19, 2015

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

    Nov. 19, 2015

    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.
Exploit Prediction

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

0.21 }} 0.02%

score

0.57546

percentile

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