2.1
CWE
264
Advisory Published
Updated

CVE-2011-3257

First published: Fri Oct 14 2011(Updated: )

The Data Access component in Apple iOS before 5 does not properly handle the existence of multiple user accounts on the same mail server, which allows local users to bypass intended access restrictions in opportunistic circumstances by leveraging a different account's cookie.

Credit: product-security@apple.com

Affected SoftwareAffected VersionHow to fix
iPhone OS=4.0
iPhone OS=4.3.2
iPhone OS=4.0.2
iPhone OS=4.0.1
iPhone OS=3.2
iPhone OS=4.2.8
iPhone OS=4.1
iPhone OS=3.1.2
iPhone OS=4.3.5
iPhone OS=3.1.3
iPhone OS=4.3.1
iPhone OS=4.2.5
iPhone OS=3.2.1
iPhone OS=3.1
iPhone OS=4.3.5
iPhone OS=3.1
iPhone OS=3.2
iPhone OS=4.3.5
iPhone OS=4.2.1
iPhone OS=3.0
iPhone OS=4.0.1
iPhone OS=4.3.3
iPhone OS=4.0.1
iPhone OS=4.0
iPhone OS=3.1
iPhone OS=4.0
iPhone OS=4.3.0
iPhone OS=3.2.1
iPhone OS=3.2.2

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Frequently Asked Questions

  • What is the severity of CVE-2011-3257?

    CVE-2011-3257 is classified as a vulnerability that can allow unauthorized access under certain conditions.

  • How do I fix CVE-2011-3257?

    To mitigate CVE-2011-3257, it is recommended to update to a version of Apple iOS that is 5.0 or later.

  • What systems are affected by CVE-2011-3257?

    CVE-2011-3257 affects iOS versions prior to 5.0 including 4.0, 4.0.1, and all versions up to 4.3.5.

  • What type of attack does CVE-2011-3257 enable?

    CVE-2011-3257 can potentially allow local users to bypass intended access restrictions via shared cookies.

  • Who should be concerned about CVE-2011-3257?

    Users of affected iOS devices, particularly those using multiple accounts on the same email server, should be concerned about CVE-2011-3257.

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