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CVE-2018-4241

HighPublished

An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS...

Published: Jun 8, 2018
Updated: Aug 5, 2024
Assigning CNA: apple
Evidence observed: Jun 6, 2018

Primary CVSS

9.3/ 10High

nvd · CVSS 2.0

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS probability estimate

19.3%

Moderate · next 30 days

Percentile: 97.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "Kernel" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.

Sources

multi_pathExploit
CVE-2018-4241: XNU kernel heap overflow due to bad bounds checking in MPTCP for iOS 11 - 11.3.1released by Ian Beer
XNU Kernel - Heap Overflow Due to Bad Bounds Checking in MPTCPExploit
Google Security Research · multiple · Jun 6, 2018

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