PT-2013-5086 · Linux+3 · Linux Kernel+3
Petr Matousek
·
Publicado
2013-11-19
·
Atualizado
2023-02-13
·
CVE-2013-4591
CVSS v2.0
6.2
Média
| Vetor | AV:L/AC:H/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 3.7.2
Description
The issue is related to a buffer overflow in the
nfs4 get acl uncached function, which can cause a denial of service, resulting in memory corruption and system crash. It may also have other unspecified impacts. This occurs when a local user makes a getxattr system call for the system.nfs4 acl extended attribute of a pathname on an NFSv4 filesystem.Recommendations
For Linux kernel versions prior to 3.7.2, update to version 3.7.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the
nfs4 get acl uncached function or limiting the use of the getxattr system call for the system.nfs4 acl extended attribute on NFSv4 filesystems until the update is applied.Exploit
Correção
DoS
Buffer Overflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Centos
Linux Kernel
Red Hat
Suse