CVE Database›Document archive›CVE-2018-9568

CVE-2018-9568

kernel: Memory corruption due to incorrect socket cloning

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Severity

Important

Red Hat Product Security

7

CVSS 3.0

Review impact separately from score.

Published · September 28, 2017

Updated · June 28, 2026

Description

A possible memory corruption due to a type confusion was found in the Linux kernel in the sk_clone_lock() function in the net/core/sock.c. The possibility of local escalation of privileges cannot be fully ruled out for a local unprivileged attacker.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

The currently known attack vector uses IPv6 for exploitation. If IPv6 is not needed on the host, disabling it mitigates this attack vector. Please see https://access.redhat.com/solutions/8709 for instructions on how to disable IPv6 in Red Hat Enterprise Linux.

CVSS / CWE

CVSS 3.0 · 7
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-122 · Heap-based Buffer Overflow