What is the severity of CVE-2011-3253?

The severity of CVE-2011-3253 is considered to be moderate as it allows man-in-the-middle attacks on users without proper SSL certificate validation.

How do I fix CVE-2011-3253?

To fix CVE-2011-3253, upgrade your iOS to version 5 or later where this vulnerability has been addressed.

What versions of Apple iOS are affected by CVE-2011-3253?

CVE-2011-3253 affects Apple iOS versions prior to 5, including 3.0 through 4.3.5.

What type of attack is possible with CVE-2011-3253?

CVE-2011-3253 enables man-in-the-middle attacks, allowing attackers to spoof calendar servers and intercept sensitive information.

What security measures can be taken if I cannot upgrade from a vulnerable version affected by CVE-2011-3253?

If you cannot upgrade, avoid using unsecured networks and ensure all calendar server connections use trusted sources with valid certificates.

Vulnerability/
CVE-2011-3253

low

2.6

CWE

200

14/10/2011

3/10/2022

6/8/2024

CVE-2011-3253: Infoleak

First published: Fri Oct 14 2011(Updated: )

CalDAV in Apple iOS before 5 does not validate X.509 certificates for SSL sessions, which allows man-in-the-middle attackers to spoof calendar servers and obtain sensitive information via an arbitrary certificate.

Credit: product-security@apple.com

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

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-3253?
The severity of CVE-2011-3253 is considered to be moderate as it allows man-in-the-middle attacks on users without proper SSL certificate validation.
How do I fix CVE-2011-3253?
To fix CVE-2011-3253, upgrade your iOS to version 5 or later where this vulnerability has been addressed.
What versions of Apple iOS are affected by CVE-2011-3253?
CVE-2011-3253 affects Apple iOS versions prior to 5, including 3.0 through 4.3.5.
What type of attack is possible with CVE-2011-3253?
CVE-2011-3253 enables man-in-the-middle attacks, allowing attackers to spoof calendar servers and intercept sensitive information.
What security measures can be taken if I cannot upgrade from a vulnerable version affected by CVE-2011-3253?
If you cannot upgrade, avoid using unsecured networks and ensure all calendar server connections use trusted sources with valid certificates.

collector/nvd-historical
collector/nvd-index
agent/references
agent/first-publish-date
agent/softwarecombine
agent/type
collector/mitre-cve
source/MITRE
agent/author
agent/severity
agent/last-modified-date
agent/weakness
agent/description
agent/tags
agent/event
agent/source
vendor/apple
canonical/apple iphone os
version/apple iphone os/4.0
version/apple iphone os/4.3.2
version/apple iphone os/4.0.2
version/apple iphone os/4.0.1
version/apple iphone os/3.2
version/apple iphone os/4.2.8
version/apple iphone os/4.1
version/apple iphone os/3.1.2
version/apple iphone os/4.3.5
version/apple iphone os/3.1.3
version/apple iphone os/4.3.1
version/apple iphone os/4.2.5
version/apple iphone os/3.2.1
version/apple iphone os/3.1
version/apple iphone os/4.2.1
version/apple iphone os/3.0
version/apple iphone os/4.3.3
version/apple iphone os/4.3.0
version/apple iphone os/3.2.2

Frequently Asked Questions

What is the severity of CVE-2011-3253?
The severity of CVE-2011-3253 is considered to be moderate as it allows man-in-the-middle attacks on users without proper SSL certificate validation.
How do I fix CVE-2011-3253?
To fix CVE-2011-3253, upgrade your iOS to version 5 or later where this vulnerability has been addressed.
What versions of Apple iOS are affected by CVE-2011-3253?
CVE-2011-3253 affects Apple iOS versions prior to 5, including 3.0 through 4.3.5.
What type of attack is possible with CVE-2011-3253?
CVE-2011-3253 enables man-in-the-middle attacks, allowing attackers to spoof calendar servers and intercept sensitive information.
What security measures can be taken if I cannot upgrade from a vulnerable version affected by CVE-2011-3253?
If you cannot upgrade, avoid using unsecured networks and ensure all calendar server connections use trusted sources with valid certificates.

CVE-2011-3253: Infoleak

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-3253?

How do I fix CVE-2011-3253?

What versions of Apple iOS are affected by CVE-2011-3253?

What type of attack is possible with CVE-2011-3253?

What security measures can be taken if I cannot upgrade from a vulnerable version affected by CVE-2011-3253?

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Frequently Asked Questions

What is the severity of CVE-2011-3253?

How do I fix CVE-2011-3253?

What versions of Apple iOS are affected by CVE-2011-3253?

What type of attack is possible with CVE-2011-3253?

What security measures can be taken if I cannot upgrade from a vulnerable version affected by CVE-2011-3253?