TI-2020-11280 Aliases CVE-2020-14416 GHSA-whm7-h297-5ccm

In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the…

LOW 19CWE-362Published 2020-06-18 · Updated 2026-10-08

Key facts

Attack vector: Local
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00309 23rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	before 5.4.16	Vulnerable	Linux
cpe:2.3:o:opensuse:leap:15.1:::::::*	15.1	Vulnerable	openSUSE
cpe:2.3:o:opensuse:leap:15.2:::::::*	15.2	Vulnerable	openSUSE

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.4.16 Vulnerable ·Linux
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·openSUSE

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 5	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet
Red Hat Enterprise Linux 8	Affected	No fix yet
Red Hat Enterprise MRG 2	Affected	No fix planned: Will not fix

Timeline

2026-10-02 Threatist record created from CVE-2020-14416
2026-10-03 Alias added: GHSA-whm7-h297-5ccm
2026-10-08 CISA SSVC decision points changed

References

Patch 2

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences