VDB-8448 · OSVDB 92502 · GCVE-100-8448

WebkitGTK+ ApplyStyleCommand.cpp splitAncestorsWithUnicodeBidi memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability was found in WebkitGTK+. It has been declared as critical. Affected by this vulnerability is the function ApplyStyleCommand::splitAncestorsWithUnicodeBidi of the file WebCore/editing/ApplyStyleCommand.cpp. The manipulation results in memory corruption. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in WebkitGTK+ (Web Browser) (version now known). It has been classified as very critical. Affected is the function ApplyStyleCommand::splitAncestorsWithUnicodeBidi of the file WebCore/editing/ApplyStyleCommand.cpp. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 04/16/2013 as not defined bug report (Website). The advisory is shared for download at trac.webkit.org. The public release was coordinated in cooperation with the vendor. The exploitability is told to be difficult. 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 current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/05/2018).

Applying a patch 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 (92502†). See VDB-8447 and VDB-8446 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: trac.webkit.org

Timelineinfo

04/16/2013 🔍
04/16/2013 +0 days 🔍
04/19/2013 +3 days 🔍
05/05/2018 +1842 days 🔍

Sourcesinfo

Advisory: trac.webkit.org
Status: Not defined
Coordinated: 🔍

GCVE (VulDB): GCVE-100-8448
OSVDB: 92502

See also: 🔍

Entryinfo

Created: 04/19/2013 18:28
Updated: 05/05/2018 18:07
Changes: 04/19/2013 18:28 (43), 05/05/2018 18:07 (2)
Complete: 🔍
Committer:
Cache ID: 216:F38:103

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