CVE-2008-4302 Denial of service in n/a

Medium 5.5 Published Updated

Local users can crash the Linux kernel by triggering a bug in the splice subsystem, causing a system-wide denial of service.

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-2008-4302?

CVE-2008-4302 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 29 Sep 2008. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool.

Weakness: CWE-667

Which versions are affected by CVE-2008-4302?

It affects 3 products.

Products include Debian Debian Linux, Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2008-4302?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2008-4302 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4302 exists.

Public exploit code: 1 Exploit-DB entry.

All Debian Debian Linux vulnerabilities

Sources

Also known as GHSA-vxc2-696q-6c9j.

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