![]() This document discusses the procedure for upgrading your Cisco IOS software image on Cisco High-End routers. Conventionsįor more information on document conventions, see the Cisco Technical Tips Conventions. If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. The information in this document is based on Cisco IOS Software Release 12.1 or later. See the Background Information section for specifics on these topics. How to install Cisco IOS Software image.Prerequisites RequirementsĬisco recommends that you have knowledge of these topics: As the report notes Apple says it is aware of a report that this issue may have been actively exploited, meaning users could be at real risk if they don't update their software.This document describes how to upgrade your Cisco IOS ® software image on Cisco High-End routers. However, in that instance it was stated there were no known instances of the bug being exploited by anyone, that isn't the case here. The report sounds similar to a recent iOS 14 update from Apple that came "recommended to all users"' as it fixed a security flaw in iOS 14. Apple is aware of a report that this issue may have been actively exploited.Description: This issue was addressed by improved management of object lifetimes.CVE-2021-1879: Clement Lecigne of Google Threat Analysis Group and Billy Leonard of Google Threat Analysis Group ![]() As detailed by Apple:Īvailable for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)Impact: Processing maliciously crafted web content may lead to universal cross site scripting. Released Friday, iOS 14.4.2 for iPhone and iPadOS 14.4.2 come with a major security fix.
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