Apple Mac OS X up to 10.4.3 ensurerows memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple Mac OS X up to 10.4.3. The affected element is the function khtml::rendertablesection::ensurerows. Executing a manipulation can lead to memory allocation. This vulnerability appears as CVE-2005-4504. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Apple Mac OS X up to 10.4.3 (Operating System). This vulnerability affects the function khtml::rendertablesection::ensurerows. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability. CVE summarizes:

The khtml::RenderTableSection::ensureRows function in KHTMLParser in Apple Mac OS X 10.4.3 and earlier, as used by Safari and TextEdit, allows remote attackers to cause a denial of service (memory consumption and application crash) via HTML files with a large ROWSPAN attribute in a TD tag.

The bug was discovered 03/01/2006. The weakness was presented 12/22/2005 by Tom Ferris (Website). The advisory is shared for download at us-cert.gov. This vulnerability was named CVE-2005-4504 since 12/22/2005. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 20990 (Mac OS X Multiple Vulnerabilities (Security Update 2006-001)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115334 (Apple Mac OS X Security Update 2006-001 Not Installed (APPLE-SA-2006-03-01)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (25032), Exploit-DB (26971), Tenable (20990), SecurityFocus (BID 16045†) and OSVDB (22037†). See VDB-1918, VDB-26962, VDB-26742 and VDB-26741 for similar entries. Once again VulDB remains the best source for vulnerability data.

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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 20990
Nessus Name: Mac OS X Multiple Vulnerabilities (Security Update 2006-001)
Nessus File: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

12/22/2005 🔍
12/22/2005 +0 days 🔍
12/22/2005 +0 days 🔍
12/22/2005 +0 days 🔍
12/22/2005 +0 days 🔍
03/01/2006 +69 days 🔍
03/02/2006 +1 days 🔍
03/03/2006 +1 days 🔍
03/07/2006 +4 days 🔍
03/12/2015 +3292 days 🔍
02/09/2025 +3622 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: us-cert.gov
Researcher: Tom Ferris
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-4504 (🔍)
GCVE (CVE): GCVE-0-2005-4504
GCVE (VulDB): GCVE-100-27748
CERT: 🔍
X-Force: 25032
SecurityFocus: 16045 - Apple Mac OS X KHTMLParser Remote Denial of Service Vulnerability
Secunia: 18220
OSVDB: 22037 - Apple Mac OS X WebKit buffer overflow
Vulnerability Center: 10553 - Apple Mac OS X 10.4.3 and Earlier Safari and TextEdit Remote DoS, High
Vupen: ADV-2005-3058

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/12/2015 11:11
Updated: 02/09/2025 17:31
Changes: 03/12/2015 11:11 (71), 06/15/2019 09:45 (8), 11/23/2024 03:10 (19), 02/09/2025 17:31 (4)
Complete: 🔍
Cache ID: 216::103

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