CVE-2017-13693 Information disclosure in n/a

Medium 5.5 Published Updated

Local attackers can read kernel memory and bypass KASLR via a crafted ACPI table due to missing operand cache flushing in the Linux kernel.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2017-13693?

CVE-2017-13693 is a medium-severity vulnerability in Linux kernel, published on 25 Aug 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The acpi_ds_create_operands() function in drivers/acpi/acpica/dsutils.c in the Linux kernel through 4.12.9 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.

Weakness: CWE-200

Which versions are affected by CVE-2017-13693?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-13693?

Apply the vendor's patch.

Is CVE-2017-13693 being exploited?

There is no known exploitation of CVE-2017-13693 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-13693, GHSA-8xw3-8jcr-ch76, ROOT-OS-DEBIAN-11-CVE-2017-13693, ROOT-OS-DEBIAN-12-CVE-2017-13693, ROOT-OS-DEBIAN-13-CVE-2017-13693, ROOT-OS-UBUNTU-2204-CVE-2017-13693 and 2 more.

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