Apple Safari 3/3.1 PCRE pcre_compile.cpp memory corruption

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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple Safari 3/3.1. Affected is an unknown function of the file JavaScriptCore/pcre/pcre_compile.cpp of the component PCRE. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2008-1026. The attack may be launched remotely. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple Safari 3/3.1 (Web Browser). Affected is some unknown functionality of the file JavaScriptCore/pcre/pcre_compile.cpp of the component PCRE. 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. CVE summarizes:

Integer overflow in the PCRE regular expression compiler (JavaScriptCore/pcre/pcre_compile.cpp) in Apple WebKit, as used in safari before 3.1.1, allows remote attackers to execute arbitrary code via a regular expression with large, nested repetition counts, which triggers a heap-based buffer overflow.

The weakness was shared 04/17/2008 by Charlie Miller, Jake Honoroff and Mark Daniel (TippingPoint) with TippingPoint's Zero Day Initiative (Website). The advisory is shared for download at apple.com. This vulnerability is traded as CVE-2008-1026 since 02/26/2008. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a private exploit are known.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 31992 (Mac OS X : Apple Safari < 3.1.1), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115785 (Apple Safari Multiple Vulnerabilities (SA-2008-04-16)).

Upgrading to version 3.1.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at apple.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 6031.

The vulnerability is also documented in the databases at X-Force (41859), Tenable (31992), SecurityFocus (BID 28815†), OSVDB (43980†) and Secunia (SA29846†). Further details are available at channelregister.co.uk. The entries VDB-3683, VDB-37376 and VDB-42036 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 31992
Nessus Name: Mac OS X : Apple Safari < 3.1.1
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Safari 3.1.1
Patch: apple.com
TippingPoint: 🔍

Timelineinfo

02/26/2008 🔍
03/28/2008 +31 days 🔍
04/16/2008 +18 days 🔍
04/16/2008 +0 days 🔍
04/16/2008 +0 days 🔍
04/16/2008 +0 days 🔍
04/17/2008 +1 days 🔍
04/17/2008 +0 days 🔍
04/21/2008 +4 days 🔍
04/22/2008 +1 days 🔍
03/16/2021 +4711 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: apple.com
Researcher: Charlie Miller, Jake Honoroff, Mark Daniel (TippingPoint)
Organization: TippingPoint's Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-1026 (🔍)
GCVE (CVE): GCVE-0-2008-1026
GCVE (VulDB): GCVE-100-3684
X-Force: 41859 - Apple Safari WebKit pcre_compile.cpp buffer overflow, High Risk
SecurityFocus: 28815 - Apple Safari WebKit JavaScript Regular Expression Repetition Counts Buffer Overflow Vulnerability
Secunia: 29846 - Safari Multiple Vulnerabilities, Highly Critical
OSVDB: 43980 - Apple Safari WebKit (JavaScriptCore/pcre/pcre_compile.cpp) PCRE Nested Repetition Count Overflow
SecurityTracker: 1019870 - Safari WebKit Bug in Processing JavaScript Regular Expressions Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 18239 - Apple WebKit in Safari < 3.1.1 Integer Overflow in the PCRE Regular Expression Compiler, Medium
Vupen: ADV-2008-1250

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 04/21/2008 12:19
Updated: 03/16/2021 13:36
Changes: 04/21/2008 12:19 (94), 04/06/2019 08:50 (5), 03/16/2021 13:36 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!