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CVE-2012-5374

Status Candidate

Overview

The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (extended runtime of kernel code) by creating many different files whose names are associated with the same CRC32C hash value.

Related Files

Ubuntu Security Notice USN-2018-1
Posted Nov 11, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2018-1 - A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-5374, CVE-2012-5375, CVE-2013-2147, CVE-2012-5374, CVE-2012-5375, CVE-2013-2147
SHA-256 | 26ba8f2a9dc4df734a0426fb31924c870e8ec30c3ca055d1e68ec1be29a1307f
Ubuntu Security Notice USN-2017-1
Posted Nov 11, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2017-1 - A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-5374, CVE-2012-5375, CVE-2013-2147, CVE-2012-5374, CVE-2012-5375, CVE-2013-2147
SHA-256 | 69396b0d0d083ee263b3ae283d397353335eea77c8a69ba2d644f7c5f9b5497e
Ubuntu Security Notice USN-1947-1
Posted Sep 6, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1947-1 - A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163, CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163
SHA-256 | 19b6c149ebe3b2088d52c98d0772c8e2b25e649872dce2eb412f23aeeb5cf8ee
Ubuntu Security Notice USN-1946-1
Posted Sep 6, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1946-1 - A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163, CVE-2012-5375, CVE-2013-1060
SHA-256 | dd974f010bbff440313942f7c9ba339449ecb01b534d8f4e20722e8282e34496
Ubuntu Security Notice USN-1945-1
Posted Sep 6, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1945-1 - A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163, CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163
SHA-256 | ad55b1cde311e93b165a194fa06c48b83dae5ca0f254120b3f02686b4b5c4ad0
Ubuntu Security Notice USN-1944-1
Posted Sep 6, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1944-1 - A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163, CVE-2012-5374, CVE-2012-5375, CVE-2013-1060, CVE-2013-2140, CVE-2013-2232, CVE-2013-2234, CVE-2013-4162, CVE-2013-4163
SHA-256 | 554901691a20482f825e28f1547beee044c4f79424f652805a6a705b37f9c767
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