CVE-2020-14416

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Summary

CVECVE-2020-14416
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-06-18 11:15:09 UTC
Updated2026-10-08 21:17:23 UTC
DescriptionIn the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c.

Risk And Classification

Primary CVSS: v3.1 4.2 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.003090000 probability, percentile 0.218400000 (date 2026-10-10)

Problem Types: CWE-362 | CWE-416 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.7AV:L/AC:M/Au:N/C:N/I:N/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:M/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[security-announce] openSUSE-SU-2020:0935-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.16 af854a3a-2127-422b-91ae-364da2661108 cdn.kernel.org Release Notes, Vendor Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch, Vendor Advisory
[security-announce] openSUSE-SU-2020:1153-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Bug 1162002 – VUL-0: CVE-2020-14416: kernel-source: can, slip: Protect tty->disc_data in write_wakeup and close with RCU af854a3a-2127-422b-91ae-364da2661108 bugzilla.suse.com Issue Tracking, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174728 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2020:2122-1)
  • 174729 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2020:2106-1)
  • 670578 EulerOS Security Update for kernel (EulerOS-SA-2021-2336)
  • 750376 OpenSUSE Security Update for RT kernel (openSUSE-SU-2021:0242-1)

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