PT-2013-1792 · Linux+1 · Linux Kernel+1

Pascal Junod · Publicado 2013-02-18 · Atualizado 2014-01-04 · CVE-2012-5374

Positive Technologies (AI Summary)

CVSS v2.0

4.0

Média

Vetor base

AV:L/AC:H/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.8-rc1

Description The issue allows local users to cause a denial of service, resulting in extended runtime of kernel code. This is achieved by creating many different files whose names are associated with the same CRC32C hash value, exploiting the CRC32C feature in the Btrfs implementation.

Recommendations For Linux kernel versions prior to 3.8-rc1, update to version 3.8-rc1 or later to resolve the issue.

Exploit

Correção

DoS

Enumeração de Fraquezas

CWE-310

Identificadores relacionados

CVE-2012-5374

OPENSUSE-SU-2013_0395-1

USN-1944-1

USN-1945-1

USN-1946-1

USN-1947-1

USN-2017-1

USN-2018-1

Produtos afetados

Linux Kernel

Suse

Referências · 53

• 🔥 https://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89 · Exploit
• https://github.com/torvalds/linux/commit/48856286b64e4b66ec62b94e504d0b29c1ade664 · Nota
• https://bdu.fstec.ru/vul/2015-05311 · Nota de Segurança
• https://bdu.fstec.ru/vul/2015-05310 · Nota de Segurança
• https://bdu.fstec.ru/vul/2015-05305 · Nota de Segurança
• https://bdu.fstec.ru/vul/2015-05307 · Nota de Segurança
• https://ubuntu.com/security/notices/USN-2017-1 · Aviso do Fabricante
• http://openwall.com/lists/oss-security/2012/12/13/20 · Nota
• https://cve.org/CVERecord?id=CVE-2012-5374 · Nota de Segurança
• http://support.novell.com/security/cve/CVE-2013-0160.html · Nota
• http://ubuntu.com/usn/USN-1947-1 · Aviso do Fabricante
• https://security-tracker.debian.org/tracker/CVE-2012-5374 · Aviso do Fabricante
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html · Aviso do Fabricante
• http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs · Nota
• http://support.novell.com/security/cve/CVE-2013-1763.html · Nota