CVE-2011-2391: Input Validation
The IPv6 implementation in the kernel in Apple iOS before 7 allows remote attackers to cause a denial of service (CPU consumption) via crafted ICMPv6 packets.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2011-2391?
CVE-2011-2391 has been classified with a medium severity rating due to its potential for denial of service via crafted ICMPv6 packets.
How do I fix CVE-2011-2391?
To fix CVE-2011-2391, upgrade affected Apple devices to a version of iOS or macOS that includes the security patch released after the vulnerability was discovered.
What systems are affected by CVE-2011-2391?
CVE-2011-2391 affects various versions of iOS prior to 7 and macOS up to version 10.9.5 among other Apple software.
What is the impact of CVE-2011-2391 on devices?
The impact of CVE-2011-2391 is that attackers can utilize crafted ICMPv6 packets to consume CPU resources, leading to a denial of service.
Is there a workaround for CVE-2011-2391?
There are no official workarounds for CVE-2011-2391; the recommended action is to update to the latest version of the software.