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CVE-2012-5375

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Date: February 18, 2013

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.

Language: C

Severity Score

Related Resources (13)

http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/
http://www.ubuntu.com/usn/USN-1946-1
http://www.ubuntu.com/usn/USN-1947-1
https://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89
http://www.ubuntu.com/usn/USN-1944-1
http://www.ubuntu.com/usn/USN-1945-1
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c52057c698fb96f8f07e7a4bcf4801a092bda89
https://nvd.nist.gov/vuln/detail/CVE-2012-5375
http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
http://www.ubuntu.com/usn/USN-2017-1
https://people.canonical.com/~ubuntu-security/cve/CVE-2012-5375
http://openwall.com/lists/oss-security/2012/12/13/20
https://www.mend.io/vulnerability-database/CVE-2012-5375

Severity Score

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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