PT-2017-1925 · Linux+2 · Linux Kernel+2
CVE-2017-8067
·
Publicado
2017-04-22
·
Atualizado
2023-02-24
CVSS v3.1
7.8
Alta
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions 4.9.x and 4.10.x before 4.10.12
Description
The issue is caused by incorrect interaction with the
CONFIG VMAP STACK option in the drivers/char/virtio console.c file, allowing local users to cause a denial of service, such as a system crash or memory corruption, by leveraging the use of more than one virtual page for a DMA scatterlist. This can be achieved by exploiting a buffer overflow in memory.Recommendations
For Linux kernel versions 4.9.x and 4.10.x before 4.10.12, update to version 4.10.12 or later to resolve the issue.
As a temporary workaround, consider disabling the
CONFIG VMAP STACK option until a patch is available.
Restrict access to the drivers/char/virtio console.c file to minimize the risk of exploitation.Correção
DoS
Buffer Overflow
Memory Corruption
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Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Ubuntu