What’s Vulnerable › Vulnerabilities

CVE-2017-18360

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-31 · updated 2026-06-17
• Weakness: CWE-369

Description

In change_port_settings in drivers/usb/serial/io_ti.c in the Linux kernel before 4.11.3, local users could cause a denial of service by division-by-zero in the serial device layer by trying to set very high baud rates.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04
• Linux kernel: before 4.11.3 — fixed in 4.11.3

How to fix

Upgrade to a fixed version: Linux kernel 4.11.3. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6aeb75e6adfaed16e58780309613a578fe1ee90b
• http://www.securityfocus.com/bid/106802
• https://bugzilla.suse.com/show_bug.cgi?id=1123706
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3
• https://github.com/torvalds/linux/commit/6aeb75e6adfaed16e58780309613a578fe1ee90b
• https://usn.ubuntu.com/3933-1/
• https://usn.ubuntu.com/3933-2/
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6aeb75e6adfaed16e58780309613a578fe1ee90b
• http://www.securityfocus.com/bid/106802
• https://bugzilla.suse.com/show_bug.cgi?id=1123706
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3
• https://github.com/torvalds/linux/commit/6aeb75e6adfaed16e58780309613a578fe1ee90b

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