CVE-2019-14763: canonical ubuntu_linux Improper Locking
Vulnerability summary
CVE-2019-14763 is a medium (CVSS 5.5) Improper Locking vulnerability in canonical ubuntu_linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.8% 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 2 · Related 2Timeline
- 07-08-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In the Linux kernel before 4.16.4, a double-locking error in drivers/usb/dwc3/gadget.c may potentially cause a deadlock with f_hid.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot 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.
Ubuntu18 products
- linux< 4.15.0-60.67
- linux-aws< 4.15.0-1047.49
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1047.49~16.04.1
- linux-azure< 4.15.0-1059.64~14.04.1
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04
Debian1 product
- linux< 4.16.5-1
Linux1 product
- linux_kernel< 4.16.4
4 vendors · 21 products
References
14 links- www.spinics.net/lists/linux-usb/msg167355.htmlX Refsource MISCMailing ListPatchThird Party AdvisoryREPORT
- www.spinics.net/lists/linux-usb/msg167393.htmlX Refsource MISCMailing ListPatchThird Party AdvisoryREPORT
- github.com/torvalds/linux/commit/c91815b596245fd7da349ecc43c8def670d2269eX Refsource MISCPatchThird Party Advisory
- github.com/torvalds/linux/commit/072684e8c58d17e853f8e8b9f6d9ce2e58d2b036X Refsource MISCPatchThird Party Advisory
