PT-2017-1922
CVE-2017-8070
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Published
2017-02-02
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Updated
2017-04-28
Description by
CVSS 3.1
7.8
HighMetricsAV: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 prior to 4.9.11
Description
The issue is caused by a buffer overflow in the Linux kernel's drivers/net/usb/catc.c driver. It allows a local attacker to cause a denial of service, such as a system crash or memory corruption, by interacting incorrectly with the
CONFIG VMAP STACK parameter and using more than one virtual page for a DMA scatterlist.Recommendations
For Linux kernel versions prior to 4.9.11, update to version 4.9.11 or later to resolve the issue. As a temporary workaround, consider restricting the use of the
CONFIG VMAP STACK option to minimize the risk of exploitation. Found an issue in the description? Have something to add? Feel free to write us 👾