VDB-10836 · OSVDB 98586 · GCVE-100-10836

WebkitGTK+ 2.2 DisplayRefreshMonitor.cpp fireDisplayRefreshIfNeeded use after free

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.
5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in WebkitGTK+ 2.2. Affected by this issue is the function DisplayRefreshMonitorClient::fireDisplayRefreshIfNeeded of the file platform/graphics/DisplayRefreshMonitor.cpp. The manipulation results in use after free. Additionally, an exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical has been found in WebkitGTK+ 2.2 (Web Browser). Affected is the function DisplayRefreshMonitorClient::fireDisplayRefreshIfNeeded of the file platform/graphics/DisplayRefreshMonitor.cpp. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, and integrity.

The weakness was released 10/11/2013 as Use after free in WebCore::DisplayRefreshMonitorClient::fireDisplayRefreshIfNeeded as confirmed advisory (Website). The advisory is shared for download at trac.webkit.org. The public release was coordinated with the vendor. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed by Darin Adler and been published immediately after the advisory. The exploit is shared for download at trac.webkit.org. It is declared as proof-of-concept.

Applying the patch 157298/157299 is able to eliminate this problem. The bugfix is ready for download at trac.webkit.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (98586†). Further details are available at trac.webkit.org. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Darin Adler
Download: 🔍
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: 🔍
Exploit Delay Time: 🔍

Patch: 157298/157299

Timelineinfo

10/11/2013 🔍
10/11/2013 +0 days 🔍
10/11/2013 +0 days 🔍
10/17/2013 +6 days 🔍
03/24/2019 +1984 days 🔍

Sourcesinfo

Advisory: Use after free in WebCore::DisplayRefreshMonitorClient::fireDisplayRefreshIfNeeded
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10836
OSVDB: 98586

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍

Entryinfo

Created: 10/17/2013 10:34
Updated: 03/24/2019 21:05
Changes: 10/17/2013 10:34 (51), 03/24/2019 21:05 (2)
Complete: 🔍
Committer:
Cache ID: 216:6CE:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!