Apple Safari up to 3.2.3 SVGList memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple Safari up to 3.2.3. The affected element is an unknown function of the component SVGList Handler. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2008-3529. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Safari up to 3.2.3 (Web Browser). It has been rated as critical. This issue affects an unknown functionality of the component SVGList Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.

The bug was discovered 09/11/2008. The weakness was disclosed 05/13/2009 by Nils with ZDI as HT3550 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2008-3529 since 08/07/2008. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Kevin Finisterre in Ruby and been published 2 weeks after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 67167 (Solaris 9 (sparc) : 127681-07), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Solaris Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115942 (Red Hat libxml2 Security Update (RHSA-2008:0884-3)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.apple.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8766.

The vulnerability is also documented in the databases at X-Force (45094), Exploit-DB (8798), Tenable (67167), SecurityFocus (BID 31126†) and OSVDB (48158†). The entries VDB-3976, VDB-3975, VDB-21466 and VDB-48177 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Kevin Finisterre
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67167
Nessus Name: Solaris 9 (sparc) : 127681-07
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61776
OpenVAS Name: Debian Security Advisory DSA 1654-1 (libxml2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: support.apple.com
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/07/2008 🔍
09/11/2008 +35 days 🔍
09/11/2008 +0 days 🔍
09/11/2008 +0 days 🔍
09/11/2008 +0 days 🔍
09/12/2008 +1 days 🔍
09/12/2008 +0 days 🔍
09/15/2008 +2 days 🔍
10/14/2008 +29 days 🔍
05/13/2009 +211 days 🔍
05/19/2009 +6 days 🔍
05/26/2009 +7 days 🔍
05/26/2009 +0 days 🔍
07/03/2013 +1499 days 🔍
11/30/2024 +4168 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT3550
Researcher: Nils
Organization: ZDI
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-3529 (🔍)
GCVE (CVE): GCVE-0-2008-3529
GCVE (VulDB): GCVE-100-3977

OVAL: 🔍

X-Force: 45094
SecurityFocus: 31126 - libxml XML Entity Name Heap Buffer Overflow Vulnerability
Secunia: 35056 - Apple Safari Multiple Vulnerabilities, Highly Critical
OSVDB: 48158 - libxml2 parser.c xmlParseAttValueComplex Function XML Entity Name Handling DoS
SecurityTracker: 1020855
Vulnerability Center: 19449 - Libxml2 < 2.7.0 Heap Based Buffer Overflow in the xmlParseAttValueComplex Function, Medium
Vupen: ADV-2008-2822

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

Entryinfo

Created: 05/19/2009 15:22
Updated: 11/30/2024 14:54
Changes: 05/19/2009 15:22 (110), 08/16/2019 19:02 (7), 11/30/2024 14:54 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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