PT-2017-18626 · Linux+3 · Linux Kernel+3
Johan Hovold
·
Publicado
2017-03-20
·
Atualizado
2019-04-16
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CVE-2017-8924
CVSS v3.1
4.6
Média
| Vetor | AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.10.4
Description
The issue allows local users to obtain sensitive information from uninitialized kernel memory. This is achieved by using a crafted USB device, posing as an io ti USB serial device, to trigger an integer underflow in the
edge bulk in callback function. The sensitive information can be found in the dmesg ringbuffer and syslog.Recommendations
For Linux kernel versions prior to 4.10.4, update to version 4.10.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the
edge bulk in callback function in the drivers/usb/serial/io ti.c file until a patch is available. Avoid using crafted USB devices that could trigger the integer underflow.Correção
Integer Underflow
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu