CVE-2014-3493 Memory corruption in n/a
Remote authenticated users can crash the Samba daemon via memory corruption when handling specific Unicode path requests.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-3493?
CVE-2014-3493 is a low-severity memory corruption vulnerability in Samba Samba, published on 23 Jun 2014. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The push_ascii function in smbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote authenticated users to cause a denial of service (memory corruption and daemon crash) via an attempt to read a Unicode pathname without specifying use of Unicode, leading to a character-set conversion failure that triggers an invalid pointer dereference.
Weakness: CWE-119
Which versions are affected by CVE-2014-3493?
It affects 1 product.
Products include Samba Samba.
How do I fix CVE-2014-3493?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2014-3493 being exploited?
There is no known exploitation of CVE-2014-3493 in the wild and no public exploit code.
Other vulnerabilities in Samba Samba
Sources
Also known as DEBIAN-CVE-2014-3493, ECHO-a68f-2cd0-6978, GHSA-9g8v-m7jx-fffq, UBUNTU-CVE-2014-3493.