CVE-2018-17972

kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks

Published Oct 3, 2018 CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1715-1 linux-4.9 security update
Debian DLA Debian DLA DLA-1731-1 linux security update
Debian DLA Debian DLA DLA-1731-2 linux regression update
EUVD EUVD EUVD-2018-9712 An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents.
Ubuntu USN Ubuntu USN USN-3821-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3821-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3832-1 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-3835-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3871-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3871-3 Linux kernel (AWS, GCP, KVM, OEM, Raspberry Pi 2) vulnerabilities
Ubuntu USN Ubuntu USN USN-3871-4 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3871-5 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-3880-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3880-2 Linux kernel (Trusty HWE) vulnerabilities
History

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