XMLSoft libxslt up to 1.0.11 xslt.c denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in XMLSoft libxslt up to 1.0.11. This vulnerability affects unknown code of the file xslt.c of the component libxslt. The manipulation results in denial of service. This vulnerability is reported as CVE-2013-4520. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in XMLSoft libxslt up to 1.0.11. Affected is an unknown function of the file xslt.c of the component libxslt. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

xslt.c in libxslt before 1.1.25 allows context-dependent attackers to cause a denial of service (crash) via a stylesheet that embeds a DTD, which causes a structure to be accessed as a different type. NOTE: this issue is due to an incomplete fix for CVE-2012-2825.

The weakness was disclosed 12/14/2013 (Website). The advisory is shared for download at gitorious.org. This vulnerability is traded as CVE-2013-4520 since 06/12/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 71907 (GLSA-201401-07 : libxslt: Denial of Service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166564 (SUSE Enterprise Linux Security update for libxslt (SUSE-SU-2013:1656-1)).

Upgrading to version 1.0.12 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (89722), Tenable (71907), SecurityFocus (BID 63548†), OSVDB (99671†) and Secunia (SA56072†). The entries VDB-6077, VDB-10338 and VDB-63977 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 71907
Nessus Name: GLSA-201401-07 : libxslt: Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libxslt 1.0.12
Patch: gitorious.org

Timelineinfo

06/12/2013 🔍
11/06/2013 +147 days 🔍
12/14/2013 +38 days 🔍
12/14/2013 +0 days 🔍
01/14/2014 +31 days 🔍
03/24/2015 +434 days 🔍
01/12/2022 +2486 days 🔍

Sourcesinfo

Advisory: 7089a62b8f133b42a2981cf1f920a8b3fe9a8caa
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4520 (🔍)
GCVE (CVE): GCVE-0-2013-4520
GCVE (VulDB): GCVE-100-65772

OVAL: 🔍

X-Force: 89722
SecurityFocus: 63548
Secunia: 56072
OSVDB: 99671
Vulnerability Center: 42880 - Libxslt Before 1.1.25 Remote Denial of Service Vulnerability due to an Incomplete Fix for CVE-2012-2825, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/12/2022 01:20
Changes: 03/24/2015 15:54 (65), 05/19/2017 10:55 (3), 01/12/2022 01:13 (4), 01/12/2022 01:20 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!