iOS, macOS, Safari, and More Vulnerable

Sep 22, 2023THNZero Day / Vulnerability

Apple has launched yet one more spherical of safety patches to handle three actively exploited zero-day flaws impacting iOS, iPadOS, macOS, watchOS, and Safari, taking the overall tally of zero-day bugs found in its software program this yr to 16.

The checklist of safety vulnerabilities is as follows –

  • CVE-2023-41991 – A certificates validation difficulty within the Safety framework that would permit a malicious app to bypass signature validation.
  • CVE-2023-41992 – A safety flaw in Kernel that would permit a neighborhood attacker to raise their privileges.
  • CVE-2023-41993 – A WebKit flaw that would lead to arbitrary code execution when processing specifically crafted internet content material.

Apple didn’t present extra specifics barring an acknowledgement that the “difficulty could have been actively exploited in opposition to variations of iOS earlier than iOS 16.7.”


The updates can be found for the next gadgets and working methods –

  • iOS 16.7 and iPadOS 16.7 – iPhone 8 and later, iPad Professional (all fashions), iPad Air third era and later, iPad fifth era and later, and iPad mini fifth era and later
  • iOS 17.0.1 and iPadOS 17.0.1 – iPhone XS and later, iPad Professional 12.9-inch 2nd era and later, iPad Professional 10.5-inch, iPad Professional 11-inch 1st era and later, iPad Air third era and later, iPad sixth era and later, iPad mini fifth era and later
  • macOS Monterey 12.7 and macOS Ventura 13.6
  • watchOS 9.6.3 and watchOS 10.0.1 – Apple Watch Sequence 4 and later
  • Safari 16.6.1 – macOS Huge Sur and macOS Monterey

Credited with discovering and reporting the shortcomings are Invoice Marczak of the Citizen Lab on the College of Toronto’s Munk Faculty and Maddie Stone of Google’s Menace Evaluation Group (TAG), indicating that they might have been abused as a part of highly-targeted spy ware aimed toward civil society members who’re at heightened danger of cyber threats.

The disclosure comes two weeks after Apple resolved two different actively exploited zero-days (CVE-2023-41061 and CVE-2023-41064) which were chained as a part of a zero-click iMessage exploit chain named BLASTPASS to deploy a mercenary spy ware often known as Pegasus.

This was adopted by each Google and Mozilla delivery fixes to include a safety flaw (CVE-2023-4863) that would lead to arbitrary code execution when processing a specifically crafted picture.


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There’s proof to counsel that each CVE-2023-41064, a buffer overflow vulnerability in Apple’s Picture I/O picture parsing framework, and CVE-2023-4863, a heap buffer overflow within the WebP picture library (libwebp), may discuss with the identical bug, in response to Isosceles founder and former Google Venture Zero researcher Ben Hawkes.

Rezilion, in an evaluation revealed Thursday, revealed that the libwebp library is utilized in a number of working methods, software program packages, Linux purposes, and container photos, highlighting that the scope of the vulnerability is far broader than initially assumed.

“The excellent news is that the bug appears to be patched appropriately within the upstream libwebp, and that patch is making its technique to in every single place it ought to go,” Hawkes stated. “The unhealthy information is that libwebp is utilized in numerous locations, and it may very well be some time till the patch reaches saturation.”

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