CVE-2017-18360: canonical ubuntu_linux Divide By Zero
Vulnerability summary
CVE-2017-18360 is a medium (CVSS 5.5) Divide By Zero vulnerability in canonical ubuntu_linux. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 37.3% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 2Timeline
- 31-01-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.43% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu13 products
- linux< 3.13.0-168.218 | < 4.4.0-83.106
- linux-aws< 4.4.0-1022.31
- linux-azure-fdeAll versions (No fix recorded)
- linux-gcp< 4.13.0-1002.5
- linux-gkeAll versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04
Debian1 product
- linux< 4.9.30-1
Linux1 product
- linux_kernel< 4.11.3
4 vendors · 16 products
References
12 links- github.com/torvalds/linux/commit/6aeb75e6adfaed16e58780309613a578fe1ee90bX Refsource MISCPatchThird Party Advisory