Apple Safari up to 4.0.4 WebCore::RenderBlock resource management

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 9.5 | $0-$5k | 0.00 |
Summary
A vulnerability identified as critical has been detected in Apple Safari up to 4.0.4. Affected by this vulnerability is the function WebCore::RenderBlock. Performing a manipulation results in resource management.
This vulnerability was named CVE-2010-0053. There is no available exploit.
You should upgrade the affected component.
Details
A vulnerability classified as very critical has been found in Apple Safari up to 4.0.4 (Web Browser). This affects the function WebCore::RenderBlock. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors related to the run-in Cascading Style Sheets (CSS) display property.
The weakness was presented 03/11/2010 by Robert Swiecki with Apple (Website). The advisory is shared at vupen.com. This vulnerability is uniquely identified as CVE-2010-0053. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/02/2026).
The vulnerability scanner Nessus provides a plugin with the ID 47363 (Fedora 12 : qt-4.6.2-8.fc12 (2010-4518)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118282 (Fedora Update for qt (FEDORA-2010-8423)).
Upgrading to version 4.0.0b eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9597.
The vulnerability is also documented in the databases at Tenable (47363), SecurityFocus (BID 38671†), OSVDB (62948†), Secunia (SA41856†) and SecurityTracker (ID 1023708†). See VDB-51883, VDB-51875, VDB-51558 and VDB-53012 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apple.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 10.0VulDB Meta Temp Score: 9.5
VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Nessus ID: 47363
Nessus Name: Fedora 12 : qt-4.6.2-8.fc12 (2010-4518)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 800493
OpenVAS Name: Apple Safari Webkit Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Safari 4.0.0b
TippingPoint: 🔍
Timeline
12/15/2009 🔍03/11/2010 🔍
03/11/2010 🔍
03/11/2010 🔍
03/11/2010 🔍
03/15/2010 🔍
03/16/2010 🔍
03/16/2010 🔍
03/19/2015 🔍
05/02/2026 🔍
Sources
Vendor: apple.comAdvisory: vupen.com⛔
Researcher: Robert Swiecki
Organization: Apple
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2010-0053 (🔍)
GCVE (CVE): GCVE-0-2010-0053
GCVE (VulDB): GCVE-100-52173
OVAL: 🔍
SecurityFocus: 38671 - RETIRED: Apple Safari Prior to 4.0.5 Multiple Security Vulnerabilities
Secunia: 41856
OSVDB: 62948 - Apple Safari WebKit CSS Display Property WebCore::RenderBlock() Method Use-after-free Arbitrary Code Execution
SecurityTracker: 1023708
Vulnerability Center: 25062 - Apple Safari Remote Arbitrary Code Execution Vulnerability via run-in CSS Display Property, Medium
See also: 🔍
Entry
Created: 03/19/2015 12:22Updated: 05/02/2026 05:37
Changes: 03/19/2015 12:22 (67), 02/22/2017 10:36 (10), 09/05/2021 12:14 (4), 09/05/2021 12:21 (1), 03/12/2025 23:09 (26), 04/09/2025 21:42 (1), 05/02/2026 05:37 (1)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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