CVE-2012-5375 Denial of service in n/a

What is CVE-2012-5375?

CVE-2012-5375 is a medium-severity denial of service vulnerability in Linux kernel, published on 18 Feb 2013. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (prevention of file creation) by leveraging the ability to write to a directory important to the victim, and creating a file with a crafted name that is associated with a specific CRC32C hash value.

Weakness: CWE-310

Which versions are affected by CVE-2012-5375?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2012-5375?

Upgrade to a fixed version.

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-2012-5375 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-5375 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2012-5375, GHSA-857w-w5qw-hx3x.