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TI-2019-14276 Aliases CVE-2019-19807GHSA-hxwj-xwvv-9vhc

In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by…

Priority LOW 35CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.

Why it matters now

EPSS 0.00551 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 5 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.9.199 to before 4.9.201; 4.14.152 to before 4.14.154; 4.19.82 to before 4.19.84; 5.2 to before 5.3.11VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*19.10VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.9.199 to before 4.9.201; 4.14.152 to before 4.14.154; 4.19.82 to before 4.19.84; 5.2 to before 5.3.11 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical

Remediation

Red Hat 5 advisories

  • RHSA-2020:4060 Released 2020-09-29 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.el7, kernel-tools-libs-devel-3.10.0-1160.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.el7, kernel-3.10.0-1160.el7, kernel-abi-whitelists-3.10.0-1160.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.el7
  • RHSA-2020:4062 Released 2020-09-29 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-devel-3.10.0-1160.rt56.1131.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-3.10.0-1160.rt56.1131.el7, kernel-rt-debug-devel-3.10.0-1160.rt56.1131.el7 +7
  • RHSA-2020:3222 Released 2020-07-29 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.1) kernel-tools-libs-devel-4.18.0-147.24.2.el8_1
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) bpftool-4.18.0-147.24.2.el8_1, kernel-4.18.0-147.24.2.el8_1, kernel-abi-whitelists-4.18.0-147.24.2.el8_1 +19
Show 2 more Red Hat advisories
  • RHSA-2020:3016 Released 2020-07-21 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-core-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-debug-4.18.0-193.13.2.rt13.65.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-core-4.18.0-193.13.2.rt13.65.el8_2, kernel-rt-debug-4.18.0-193.13.2.rt13.65.el8_2 +9
  • RHSA-2020:3010 Released 2020-07-21 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-193.13.2.el8_2
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-193.13.2.el8_2, kernel-4.18.0-193.13.2.el8_2, kernel-abi-whitelists-4.18.0-193.13.2.el8_2 +19

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:3010
Red Hat CodeReady Linux Builder EUS (v. 8.1)Fixed RHSA-2020:3222
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:3010
Red Hat Enterprise Linux BaseOS EUS (v. 8.1)Fixed RHSA-2020:3222
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2020:3016
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2020:3016
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:4060
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2020:4062
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2020:4062
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-19807
  2. 2026-10-03 Alias added: GHSA-hxwj-xwvv-9vhc

References

Exploit 1

Patch 1

Advisory 5

Sources

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