CVE-2017-18261: The arch_timer_reg_read_stable macro in arch/arm64/include/asm/arch_timer.h in the Linux kernel before 4.13 allows local users to cause a denial of service…

PriorityP418medium5.5CVSS 3.0

AVLACLPRLUINSUCNINAH

EPSS

0.34%

26.1th percentile

The arch_timer_reg_read_stable macro in arch/arm64/include/asm/arch_timer.h in the Linux kernel before 4.13 allows local users to cause a denial of service (infinite recursion) by writing to a file under /sys/kernel/debug in certain circumstances, as demonstrated by a scenario involving debugfs, ftrace, PREEMPT_TRACER, and FUNCTION_GRAPH_TRACER.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 4.13.4-1 (bookworm)	linux 4.13.4-1 (bookworm)
linux	linux_kernel	< 4.13	4.13
linux	linux_kernel	>= 0 < 4.13.4-1	4.13.4-1
linux	linux_kernel	>= 0 < 4.13.4-1	4.13.4-1
linux	linux_kernel	>= 0 < 4.13.4-1	4.13.4-1
linux	linux_kernel	>= 0 < 4.13.4-1	4.13.4-1

CVSS provenance

nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.9MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C

osv5.5MEDIUM

vendor_debian5.5MEDIUM

vendor_redhat5.5MEDIUM

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