CVE-2017-8924

Severity: medium (CVSS 4.6 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-05-12 · updated 2026-06-17
Weakness: CWE-191

Description

The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel before 4.10.4 allows local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer underflow.

Affected products

Debian Linux: 8.0, 9.0
Linux kernel: through 4.10.3

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=654b404f2a222f918af9b0cd18ad469d0c941a8e
http://www.debian.org/security/2017/dsa-3886
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4
http://www.securityfocus.com/bid/98451
https://github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=654b404f2a222f918af9b0cd18ad469d0c941a8e
http://www.debian.org/security/2017/dsa-3886
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4
http://www.securityfocus.com/bid/98451
https://github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e

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