PT-2015-7617 · Linux+3 · Linux Kernel+3
Martin Prpič
·
Publicado
2015-10-06
·
Atualizado
2017-03-24
·
CVE-2015-7799
CVSS v2.0
4.9
Média
| Vetor | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.2.3
Description
The issue is related to the slhc init function in the Linux kernel, which does not validate certain slot numbers. This allows local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, by making a crafted PPPIOCSMAXCID ioctl call.
Recommendations
For Linux kernel versions prior to 4.2.3, update to version 4.2.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the PPPIOCSMAXCID ioctl call to minimize the risk of exploitation.
Exploit
Correção
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Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu