In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some…
Priority MEDIUM 40CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 31 fixed, 1 without a fix
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 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.
Why it matters now
EPSS 0.03523 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 8 advisoriesRed Hat: 31 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 2.6.12 to before 3.16.82; 3.17 to before 4.4.208; 4.5.0 to before 4.9.208; 4.10 to before 4.14.159; 4.15 to before 4.19.90; 4.20 to before 5.3.17; 5.4 to before 5.4.4 | Vulnerable | Linux |
| cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:*:*:*:*:*:*:* | h610s | Vulnerable | NetApp |
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.12 to before 3.16.82; 3.17 to before 4.4.208; 4.5.0 to before 4.9.208; 4.10 to before 4.14.159; 4.15 to before 4.19.90; 4.20 to before 5.3.17; 5.4 to before 5.4.4 Vulnerable ·Linux
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:*:*:*:*:*:*:* Versions h610s Vulnerable ·NetApp
- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Remediation
Red Hat 8 advisories
- RHSA-2020:5656 Released 2020-12-22 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) bpftool-3.10.0-957.65.1.el7, kernel-3.10.0-957.65.1.el7, kernel-abi-whitelists-3.10.0-957.65.1.el7 +9
- Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.65.1.el7
- Red Hat Enterprise Linux Server EUS (v. 7.6) bpftool-3.10.0-957.65.1.el7, kernel-3.10.0-957.65.1.el7, kernel-abi-whitelists-3.10.0-957.65.1.el7 +12
- Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debug-devel-3.10.0-957.65.1.el7, kernel-tools-libs-devel-3.10.0-957.65.1.el7
- Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS kernel-devel-3.10.0-957.65.1.el7, kernel-headers-3.10.0-957.65.1.el7, perf-3.10.0-957.65.1.el7 +1
- RHSA-2020:5430 Released 2020-12-15 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-3.10.0-693.81.1.el7, kernel-abi-whitelists-3.10.0-693.81.1.el7, kernel-debug-3.10.0-693.81.1.el7 +7
- Red Hat Enterprise Linux Server E4S (v. 7.4) kernel-3.10.0-693.81.1.el7, kernel-abi-whitelists-3.10.0-693.81.1.el7, kernel-bootwrapper-3.10.0-693.81.1.el7 +8
- Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.81.1.el7
- Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debug-devel-3.10.0-693.81.1.el7, kernel-tools-libs-devel-3.10.0-693.81.1.el7
- Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.81.1.el7
- Red Hat Enterprise Linux Server TUS (v. 7.4) kernel-3.10.0-693.81.1.el7, kernel-abi-whitelists-3.10.0-693.81.1.el7, kernel-debug-3.10.0-693.81.1.el7 +7
- RHSA-2020:5206 Released 2020-11-24 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) bpftool-3.10.0-1062.40.1.el7, kernel-3.10.0-1062.40.1.el7, kernel-abi-whitelists-3.10.0-1062.40.1.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.40.1.el7
- Red Hat Enterprise Linux Server EUS (v. 7.7) bpftool-3.10.0-1062.40.1.el7, kernel-3.10.0-1062.40.1.el7, kernel-abi-whitelists-3.10.0-1062.40.1.el7 +11
- Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debug-devel-3.10.0-1062.40.1.el7, kernel-tools-libs-devel-3.10.0-1062.40.1.el7
Show 5 more Red Hat advisories
- RHSA-2020:4609 Released 2020-11-04 · Red Hat rating Moderatekernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-240.rt7.54.el8, kernel-rt-core-4.18.0-240.rt7.54.el8, kernel-rt-debug-4.18.0-240.rt7.54.el8 +7
- Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-240.rt7.54.el8, kernel-rt-core-4.18.0-240.rt7.54.el8, kernel-rt-debug-4.18.0-240.rt7.54.el8 +9
- RHSA-2020:4431 Released 2020-11-04 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-240.el8
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-240.el8, kernel-4.18.0-240.el8, kernel-abi-whitelists-4.18.0-240.el8 +19
- RHSA-2020:4060 Released 2020-09-29 · Red Hat rating Importantkernel 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 Importantkernel-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-2020:2104 Released 2020-05-12 · Red Hat rating Importantkernel-alt security and bug fix update
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-115.21.2.el7a, kernel-abi-whitelists-4.14.0-115.21.2.el7a, kernel-alt-4.14.0-115.21.2.el7a +8
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-115.21.2.el7a, kernel-tools-libs-devel-4.14.0-115.21.2.el7a
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:4431 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2020:4431 |
| 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 EUS (v. 7.6) | Fixed | RHSA-2020:5656 |
| Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) | Fixed | RHSA-2020:5206 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:4060 |
| Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) | Fixed | RHSA-2020:5656 |
| Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) | Fixed | RHSA-2020:5206 |
| Red Hat Enterprise Linux Real Time (v. 8) | Fixed | RHSA-2020:4609 |
| Red Hat Enterprise Linux Real Time for NFV (v. 8) | Fixed | RHSA-2020:4609 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:4060 |
| Red Hat Enterprise Linux Server AUS (v. 7.4) | Fixed | RHSA-2020:5430 |
| Red Hat Enterprise Linux Server E4S (v. 7.4) | Fixed | RHSA-2020:5430 |
| Red Hat Enterprise Linux Server EUS (v. 7.6) | Fixed | RHSA-2020:5656 |
| Red Hat Enterprise Linux Server EUS (v. 7.7) | Fixed | RHSA-2020:5206 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:4060 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.4) | Fixed | RHSA-2020:5430 |
| Red Hat Enterprise Linux Server Optional E4S (v. 7.4) | Fixed | RHSA-2020:5430 |
| Red Hat Enterprise Linux Server Optional EUS (v. 7.6) | Fixed | RHSA-2020:5656 |
| Red Hat Enterprise Linux Server Optional EUS (v. 7.7) | Fixed | RHSA-2020:5206 |
| Red Hat Enterprise Linux Server Optional TUS (v. 7.4) | Fixed | RHSA-2020:5430 |
| Red Hat Enterprise Linux Server TUS (v. 7.4) | Fixed | RHSA-2020:5430 |
| 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 ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2020:2104 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2020:2104 |
| 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 |
| Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS | Fixed | RHSA-2020:5656 |
Not affected: 7 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux ComputeNode EUS (v. 7.7)
- Red Hat Enterprise Linux Server AUS (v. 7.4)
- Red Hat Enterprise Linux Server E4S (v. 7.4)
- Red Hat Enterprise Linux Server EUS (v. 7.7)
- Red Hat Enterprise Linux Server TUS (v. 7.4)
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19447
- 2026-10-03 Alias added: GHSA-jx5x-5x47-rh28
References
Advisory 5
- https://security.netapp.com/advisory/ntap-20200103-0001/
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update
- openSUSE-SU-2020:0336
- [debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update
Sources
- CVE-2019-19447 · CVE Program
- CVE-2019-19447 · NVD
- FIRST EPSS
- GHSA-jx5x-5x47-rh28 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-19447 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences