PT-2017-15136 · Linux+3 · Linux Kernel+3
Tuba Yavuz
·
Publicado
2017-12-29
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Atualizado
2018-07-09
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CVE-2017-17975
CVSS v3.1
5.5
Média
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.14.11
Description
The issue is related to a use-after-free error in the
usbtv probe function, which can cause a system crash or potentially have other unspecified impacts. This occurs when the audio registration fails, leading to a kfree of the usbtv data structure during a usbtv video free call, but the code attempts to access and free this data structure again.Recommendations
For Linux kernel versions prior to 4.14.11, update to version 4.14.11 or later to resolve the issue. As a temporary workaround, consider disabling the
usbtv probe function until a patch is available. Restrict access to the usbtv module to minimize the risk of exploitation. Avoid using the usbtv video free function in conjunction with the usbtv video fail label until the issue is resolved.Correção
DoS
Use After Free
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu