Apple Safari WebKit pcre_compile.cpp buffer overflow

apple-safari-webkit-pcrecompile-bo (41859) The risk level is classified as HighHigh Risk

Description:

Apple Safari WebKit is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by pcre_compile.cpp. By persuading a victim to visit a Web site containing JavaScript regular expressions with large, nested repetition counts, an attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to APPLE-SA-2008-04-16 for patch, upgrade or suggested workaround information. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Apple Web site: About the security content of iPhone v2.0 and iPod touch v2.0.
  • APPLE-SA-2008-04-16: APPLE-SA-2008-04-16 Safari 3.1.1.
  • ZDI-08-022: Apple Safari WebKit PCRE Handling Integer Overflow Vulnerability.
  • BID-28815: Apple Safari WebKit JavaScript Regular Expression Repetition Counts Buffer Overflow Vulnerability
  • BID-30186: Apple iPhone and iPod Touch Prior to Version 2.0 Multiple Remote Vulnerabilities
  • CVE-2008-1026: 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.
  • SA29846: Safari Multiple Vulnerabilities
  • SA31074: Apple iPhone / iPod touch Multiple Vulnerabilities
  • SECTRACK ID: 1019870: Safari WebKit Bug in Processing JavaScript Regular Expressions Lets Remote Users Execute Arbitrary Code
  • VUPEN/ADV-2008-1250: Apple Safari Code Execution and Cross Site Scripting Vulnerabilities
  • VUPEN/ADV-2008-2094: Apple iPhone and iPod touch Multiple Code Execution Vulnerabilities

Platforms Affected:

  • Apple iPhone 1.0
  • Apple iPhone 1.1.1
  • Apple iPhone 1.1.2
  • Apple iPhone 1.1.3
  • Apple iPhone 1.1.4
  • Apple iPod touch 1.1
  • Apple iPod touch 1.1.1
  • Apple iPod touch 1.1.2
  • Apple iPod touch 1.1.3
  • Apple iPod touch 1.1.4
  • Apple Safari 1.0
  • Apple Safari 1.1
  • Apple Safari 1.2
  • Apple Safari 1.2.1
  • Apple Safari 1.2.2
  • Apple Safari 1.2.3
  • Apple Safari 1.3
  • Apple Safari 1.3.1
  • Apple Safari 2.0.1
  • Apple Safari 2.0.2
  • Apple Safari 2.0.3
  • Apple Safari 2.0.4
  • Apple Safari 3 Beta
  • Apple Safari 3
  • Apple Safari 3.0.1 Beta
  • Apple Safari 3.0.2 Beta
  • Apple Safari 3.0.3
  • Apple Safari 3.0.4 Beta
  • Apple Safari 3.1
  • Apple Safari 3.1 Beta
  • Apple Safari Beta2

Reported:

Apr 16, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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