PT-2014-5429 · Linux+4 · Linux Kernel+4
Publicado
2014-09-19
·
Atualizado
2024-02-02
·
CVE-2014-3631
CVSS v2.0
7.2
Alta
| Vetor | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 3.16.3
Description
The issue is related to the associative-array implementation in the Linux kernel, specifically the
assoc array gc function, which does not properly implement garbage collection. This allows local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, or possibly have unspecified other impact. The exploitation involves multiple "keyctl newring" operations followed by a "keyctl timeout" operation.Recommendations
For Linux kernel versions prior to 3.16.3, update to version 3.16.3 or later to resolve the issue.
As a temporary workaround, consider restricting the use of the
keyctl command to minimize the risk of exploitation.Exploit
Correção
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Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Ubuntu