CVE-2018-20169
MEDIUM
6.8
CVSS Score
Published: December 17, 2018 at 06:00 AM UTC
Updated: June 17, 2026 at 01:52 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxUbuntu Linux
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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.6%
Description
An issue was discovered in the Linux kernel before 4.19.9. The USB subsystem mishandles size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 3.16.633.17 ≤ v < 3.18.1293.19 ≤ v < 4.4.1674.10 ≤ v < 4.14.884.15 ≤ v < 4.19.94.5 ≤ v < 4.9.145
Affected range stops below 3.16.63, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.18.129, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.14.88, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.167, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.145, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=704620afc70cf47abb9d6a1a57f3825d2bca49cf
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.9
- https://github.com/torvalds/linux/commit/704620afc70cf47abb9d6a1a57f3825d2bca49cf
References (12)
x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=704620afc70cf47abb9d6a1a57f3825d2bca49cfVendor Advisoryx_refsource_REDHATThird Party AdvisoryVDB Entry
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:3309Vendor Advisoryx_refsource_REDHATThird Party AdvisoryVDB Entry
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:3517x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.9x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/704620afc70cf47abb9d6a1a57f3825d2bca49cfMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlCVSS
- Attack Vector
- PHYSICAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400
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