CVE-2018-4189

In iOS before 11.2.5, macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan, watchOS before 4.2.2, and…

published January 11, 2019

CVSS
—
EPSS
2%
Percentile
76.3
In the wild
Unconfirmed
What it is

⚠️ A pesky memory corruption issue is lurking in iOS, macOS, watchOS, and tvOS before their latest updates! 🔥 Think of it like a leaky faucet in your home — if left unattended, it can cause water damage that spreads, impacting other areas. This vulnerability affects how memory is handled, potentially leading to unexpected behaviors or crashes in your device. If exploited, this could lead to system instability, causing apps to behave erratically or even crash entirely. While it seems no one is actively exploiting this flaw, a determined attacker could still leverage it to disrupt user experience — definitely not a fun day for any user!

Put simply

Think of it like a leaky faucet in your home — if left unattended, it can cause water damage that spreads, impacting other areas. This vulnerability affects how memory is handled, potentially leading to unexpected behaviors or crashes in your device. This vulnerability arises from a memory corruption issue in the handling of certain processes in iOS and macOS systems. Essentially, it manifests due to improper memory management, which can lead to crashes or potentially allow malicious code execution.

What to do

If exploited, this could lead to system instability, causing apps to behave erratically or even crash entirely. While it seems no one is actively exploiting this flaw, a determined attacker could still leverage it to disrupt user experience — definitely not a fun day for any user! To mitigate this, ensure that your devices are updated to iOS 11.2.5, macOS High Sierra 10.13.3 or later, and the appropriate versions of watchOS and tvOS. Regularly checking for updates is your best defense against known vulnerabilities! You've got this! Stay updated, and you'll keep your devices safe from pesky vulnerabilities like this one. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01658 · 76.3th percentile
Published
2019-01-11T18:00Z
EPSS history
Timeline
  • 11 JAN 18:00Z
    In iOS before 11.2.5, macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra, and Security Update 2018-001 El Capitan, watchOS before 4.2.2, and…
    cvelistv5