CVE-2009-2406 Memory corruption in n/a
Local attackers can cause a system crash or potentially gain privileges via a crafted eCryptfs file due to a stack-based buffer overflow 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-2009-2406?
CVE-2009-2406 is a medium-severity memory corruption vulnerability in Linux kernel, published on 31 Jul 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to not ensuring that the key signature length in a Tag 11 packet is compatible with the key signature buffer size.
Weakness: CWE-119
Which versions are affected by CVE-2009-2406?
It affects 2 products.
Products include Linux Kernel, Linux kernel.
How do I fix CVE-2009-2406?
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-2009-2406 being exploited?
There is no known exploitation of CVE-2009-2406 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-86jh-hvhg-x8w9.