CVE-2017-11600 Memory corruption in n/a

High 7.0 Published Updated

Local attackers can cause denial of service via out-of-bounds access in the Linux kernel when XFRM migration is enabled.

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-2017-11600?

CVE-2017-11600 is a high-severity memory corruption vulnerability in Linux kernel, published on 24 Jul 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net/xfrm/xfrm_policy.c in the Linux kernel through 4.12.3, when CONFIG_XFRM_MIGRATE is enabled, does not ensure that the dir value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allows local users to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via an XFRM_MSG_MIGRATE xfrm Netlink message.

Weakness: CWE-125

Which versions are affected by CVE-2017-11600?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-11600?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-11600 being exploited?

There is no known exploitation of CVE-2017-11600 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-11600, GHSA-cr28-cmmc-g8hr, UBUNTU-CVE-2017-11600.

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