CVE-2017-14746 Use after free in n/a
Remote attackers can execute arbitrary code on Samba servers via crafted SMB1 requests due to a use-after-free vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-14746?
CVE-2017-14746 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 27 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute arbitrary code via a crafted SMB1 request.
Weakness: CWE-416
Which versions are affected by CVE-2017-14746?
It affects 6 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Samba Samba.
How do I fix CVE-2017-14746?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-14746 being exploited?
There is no known exploitation of CVE-2017-14746 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2017-14746, DEBIAN-CVE-2017-14746, ECHO-7b64-2f2d-ca65, GHSA-57pg-7qmc-wmf2, UBUNTU-CVE-2017-14746.