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-$5k	0.00

A vulnerability was found in libxslt 1.1.28. It has been declared as problematic. This vulnerability affects the function xsltStylePreCompute of the file preproc.c of the component XML File Handler. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. As an impact it is known to affect availability. CVE summarizes:

The xsltStylePreCompute function in preproc.c in libxslt 1.1.28 does not check if the parent node is an element, which allows attackers to cause a denial of service via a crafted XML file, related to a "type confusion" issue.

The weakness was shared 11/17/2015 as confirmed git commit (GIT Repository). The advisory is available at git.gnome.org. This vulnerability was named CVE-2015-7995 since 10/28/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 87001 (FreeBSD : libxslt -- DoS vulnerability due to type confusing error (ecc268f2-8fc2-11e5-918c-bcaec565249c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124584 (Apple Mac OS X v10.11.3 and Security Update 2016-001 Not Installed (APPLE-SA-2016-01-19-2)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.gnome.org. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87001), SecurityFocus (BID 77325†) and Vulnerability Center (SBV-54754†). The entries VDB-80331, VDB-80332, VDB-80333 and VDB-80334 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• libxslt

Version

• 1.1.28

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 87001
Nessus Name: FreeBSD : libxslt -- DoS vulnerability due to type confusing error (ecc268f2-8fc2-11e5-918c-bcaec565249c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 February-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.gnome.org

Timelineinfo

10/27/2015 🔍
10/28/2015 +1 days 🔍
11/17/2015 +20 days 🔍
11/17/2015 +0 days 🔍
11/18/2015 +1 days 🔍
11/20/2015 +2 days 🔍
11/23/2015 +3 days 🔍
12/02/2015 +9 days 🔍
06/27/2022 +2399 days 🔍

Sourcesinfo

Advisory: git.gnome.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7995 (🔍)
GCVE (CVE): GCVE-0-2015-7995
GCVE (VulDB): GCVE-100-79234

OVAL: 🔍

SecurityFocus: 77325
SecurityTracker: 1034736
Vulnerability Center: 54754 - Libxslt 1.1.28 Remote DoS in xsltStylePreCompute Function in Preproc via a Crafted XML File, Medium

See also: 🔍

Entryinfo

Created: 11/18/2015 10:15 AM
Updated: 06/27/2022 02:34 PM
Changes: 11/18/2015 10:15 AM (61), 05/10/2018 11:00 AM (15), 06/27/2022 02:34 PM (3)
Complete: 🔍
Cache ID: 18:EEA:40

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