CVE-2014-4495

The kernel in Apple iOS before 8.1.3, Apple OS X before 10.10.2, and Apple TV before 7.0.3 does not enforce the read-only attribute of a shared memory segment…

published January 30, 2015

CVSS
—
EPSS
3%
Percentile
86.9
In the wild
Unconfirmed
What it is

⚠️ A sneaky gap in Apple's security could let crafted apps bypass restrictions! This vulnerability affects iOS, OS X, and Apple TV versions before 8.1.3, 10.10.2, and 7.0.3, respectively. Picture a restaurant where the chef accidentally lets a delivery person access the kitchen after hours — if the delivery person doesn't respect the rules, they could sneak in and tamper with the food! This vulnerability allows attackers to access shared memory segments like a delivery person who stumbles into the kitchen uninvited. An attacker could exploit this flaw to manipulate data that should be read-only, potentially altering the behavior of applications. While there’s no evidence it’s been exploited yet, the risk of unauthorized access to sensitive information is far from trivial. If an application can read sensitive data, it could lead to data leakage or unauthorized operations.

Put simply

Picture a restaurant where the chef accidentally lets a delivery person access the kitchen after hours — if the delivery person doesn't respect the rules, they could sneak in and tamper with the food! This vulnerability allows attackers to access shared memory segments like a delivery person who stumbles into the kitchen uninvited. This vulnerability arises from the kernel not enforcing read-only attributes for shared memory segments when using custom cache modes. This oversight allows attackers to bypass intended access controls through specially crafted applications.

What to do

An attacker could exploit this flaw to manipulate data that should be read-only, potentially altering the behavior of applications. While there’s no evidence it’s been exploited yet, the risk of unauthorized access to sensitive information is far from trivial. If an application can read sensitive data, it could lead to data leakage or unauthorized operations. Users should upgrade their devices to at least iOS 8.1.3, OS X 10.10.2, or Apple TV 7.0.3 to mitigate this vulnerability. Regular system updates are essential to maintain security, so check for updates frequently! You've got this! By staying updated, you're one step closer to locking down your devices! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02939 · 86.9th percentile
Published
2015-01-30T11:00Z
EPSS history
Timeline
  • 30 JAN 11:00Z
    The kernel in Apple iOS before 8.1.3, Apple OS X before 10.10.2, and Apple TV before 7.0.3 does not enforce the read-only attribute of a shared memory segment…
    cvelistv5