79914 : Apple iOS JavaScriptCore Component array.splice Method Length Calculation Handling Memory Corruption
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	666	about 1 year ago	about 1 month ago	8 times	100%

Timeline

Disclosure Date
2012-03-07

Time to Patch
76 days

Description

A memory corruption flaw exists in Apple iOS. The JavaScriptCore component fails to sanitize user-supplied input during the calculation of length for the array.splice method resulting in the browser improperly calculating lengths. This will cause a memory corruption, which will allow a context-dependent attacker to execute arbitrary code.

Classification

Location: Remote / Network Access, Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Private
Disclosure: Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Apple has released a software update for version 5.1 to address this vulnerability. Check the vendor advisory or solution in the references section.

Products

Apple Inc.

Apple iOS

5.0.1

References

Security Tracker: 1026774
Related OSVDB ID: 79905 79906 79907 79908 79909 79910 79911 79912 79913 79915 79916 79917 79918 79919 79920 79921 79922 79923 79924 79925 79926 79927 79928 79929 79930 79931 79932 79933 79934 79935 79936 79937 79938 79939 79940 79941 79942 79943 79944 79945 79946 79947 79948 79949 79950 79951 79952 79953 79954 79955 79956 79964
CVE ID: 2012-0592 (see also: NVD)
Secunia Advisory ID: 48274 48288 48377
Mail List Post: http://lists.apple.com/archives/security-announce/2012/Mar/msg00000.html
http://lists.apple.com/archives/security-announce/2012/Mar/msg00001.html
http://lists.apple.com/archives/security-announce/2012/Mar/msg00003.html
Vendor Specific Advisory URL: http://support.apple.com/kb/HT5190
http://support.apple.com/kb/HT5191
http://support.apple.com/kb/HT5192
Other Advisory URL: http://www.zerodayinitiative.com/advisories/ZDI-12-067/

Credit

Alexander Gavrun - Zero Day Initiative (ZDI)

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2012-03-09 | Disagree?

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