CVE-2017-10661 Race condition in n/a
Local attackers can exploit a race condition in the Linux kernel timerfd subsystem to escalate privileges or cause a denial of service via simultaneous file-descriptor operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-10661?
CVE-2017-10661 is a high-severity vulnerability in Debian Debian Linux, published on 19 Aug 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.
Weakness: CWE-416
Which versions are affected by CVE-2017-10661?
It affects 6 products.
Products include Debian Debian Linux, Linux kernel, Redhat Enterprise Linux, Redhat Enterprise Linux Aus, Redhat Enterprise Linux Server Eus, Redhat Enterprise Linux Server for Power Little Endian Update Services for Sap Solutions.
How do I fix CVE-2017-10661?
Apply the vendor's patch.
Is CVE-2017-10661 being exploited?
There is no known exploitation of CVE-2017-10661 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-10661, GHSA-gg87-xrj2-3r8m, UBUNTU-CVE-2017-10661.