usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a…
Priority LOW 31CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 fixed, 4 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
usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925.
Why it matters now
EPSS 0.00802 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 4 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 · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 3.16.85; 3.17 to before 4.4.221; 4.5 to before 4.9.221; 4.10 to before 4.14.178; 4.15 to before 4.19.119; 4.20 to before 5.4.36; 5.5 to before 5.6.8 | 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:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:* | h300s | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:* | h410c | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:* | h410s | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:* | h500s | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h610c:*:*:*:*:*:*:* | h610c | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:*:*:*:*:*:*:* | h610s | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h615c:*:*:*:*:*:*:* | h615c | Vulnerable | NetApp |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.16.85; 3.17 to before 4.4.221; 4.5 to before 4.9.221; 4.10 to before 4.14.178; 4.15 to before 4.19.119; 4.20 to before 5.4.36; 5.5 to before 5.6.8 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:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:* Versions h300s Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:* Versions h410c Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:* Versions h410s Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:* Versions h500s Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h610c:*:*:*:*:*:*:* Versions h610c Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:*:*:*:*:*:*:* Versions h610s Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h615c:*:*:*:*:*:*:* Versions h615c Vulnerable ·NetApp
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:* | h700s | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_storage_nodes:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:aff_a700s:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:* Versions h700s Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_storage_nodes:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:aff_a700s:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* 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 2 advisories
- RHSA-2021:1739 Released 2021-05-18 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-305.rt7.72.el8, kernel-rt-core-4.18.0-305.rt7.72.el8, kernel-rt-debug-4.18.0-305.rt7.72.el8 +7
- Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-305.rt7.72.el8, kernel-rt-core-4.18.0-305.rt7.72.el8, kernel-rt-debug-4.18.0-305.rt7.72.el8 +9
- RHSA-2021:1578 Released 2021-05-18 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-305.el8
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-305.el8, kernel-4.18.0-305.el8, kernel-abi-stablelists-4.18.0-305.el8 +19
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 planned: Will not fix |
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:1578 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:1578 |
| Red Hat Enterprise Linux Real Time (v. 8) | Fixed | RHSA-2021:1739 |
| Red Hat Enterprise Linux Real Time for NFV (v. 8) | Fixed | RHSA-2021:1739 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12464
- 2026-10-03 Alias added: GHSA-jx8c-mxmr-fc68
References
Exploit 1
Patch 3
Advisory 13
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
- https://security.netapp.com/advisory/ntap-20200608-0001/
- [debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security update
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update
- DSA-4698
- DSA-4699
- openSUSE-SU-2020:0801
- USN-4388-1
- USN-4389-1
- USN-4387-1
- USN-4390-1
- USN-4391-1
Sources
- CVE-2020-12464 · CVE Program
- CVE-2020-12464 · NVD
- FIRST EPSS
- GHSA-jx8c-mxmr-fc68 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-12464 · 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