VDB-10594 · OSVDB 98108

libxml2 xmlregexp.c xmlRegExecPushStringInterna null pointer dereference

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.
7.2$0-$5k0.00

A vulnerability classified as critical was found in libxml2 (Document Processing Software) (the affected version unknown). This vulnerability affects the function xmlRegExecPushStringInterna of the file xmlregexp.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The weakness was shared 09/11/2013 by Gaurav Gupta with Samsung as Bug 707749 - NULL pointer dereferenced in xmlregexp.c as confirmed advisory (Website). The advisory is available at bugzilla.gnome.org. The vendor cooperated in the coordination of the public release. 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.

Applying the patch Fix potential NULL pointer dereferences in regexp code is able to eliminate this problem. The bugfix is ready for download at git.gnome.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 10593 and 10595 are related to this item.

Productinfo

Type

Name

License

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: Fix potential NULL pointer dereferences in regexp code

Timelineinfo

09/11/2013 🔍
09/11/2013 +0 days 🔍
10/08/2013 +27 days 🔍
03/24/2019 +1993 days 🔍

Sourcesinfo

Advisory: Bug 707749 - NULL pointer dereferenced in xmlregexp.c
Researcher: Gaurav Gupta
Organization: Samsung
Status: Confirmed
Coordinated: 🔍
OSVDB: 98108

See also: 🔍

Entryinfo

Created: 10/08/2013 12:44
Updated: 03/24/2019 17:36
Changes: 10/08/2013 12:44 (46), 03/24/2019 17:36 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!