CVE-2020-12464

Exp

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.

Published: 2020-04-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12464 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-12464

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-12464

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.35% 0.08% -0.27%
2 2025-03-29 0.08% 0.35% +0.27%
3 2025-03-17 — 0.08% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12464

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2020-12464

OS Trackers for CVE-2020-12464

vendor priority summary link
debian not yet assigned CVE-2020-12464 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-12464
redhat medium — https://access.redhat.com/security/cve/CVE-2020-12464
suse low CVE-2020-12464 severity low: SUSE including 543 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 839 product×package rows across 113 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (113 product lines)): Fixed 555, Known Affected 157, Known Not Affected 127. https://www.suse.com/security/cve/CVE-2020-12464/
ubuntu medium CVE-2020-12464 medium priority: Ubuntu including 112 source packages (linux, linux-aws, …), 1151 status rows across 12 suites (bionic, eoan, focal, groovy, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 819, released 164, not-affected 151, ignored 17. https://ubuntu.com/security/CVE-2020-12464

Affected software / configurations for CVE-2020-12464

Vendor Product Version Raw CPE
linux linux_kernel < 3.16.85 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.17, < 4.4.221 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.5, < 4.9.221 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.10, < 4.14.178 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.15, < 4.19.119 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.20, < 5.4.36 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.5, < 5.6.8 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netapp cloud_backup — cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h300s cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h410c cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h410s cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h500s cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h610c cpe:2.3:a:netapp:hci_baseboard_management_controller:h610c:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h610s cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h615c cpe:2.3:a:netapp:hci_baseboard_management_controller:h615c:*:*:*:*:*:*:*
netapp hci_baseboard_management_controller h700s cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:*
netapp hci_storage_nodes — cpe:2.3:a:netapp:hci_storage_nodes:-:*:*:*:*:*:*:*
netapp solidfire_\&_hci_storage_node — cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:*
netapp steelstore_cloud_integrated_storage — cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
netapp aff_a700s — cpe:2.3:h:netapp:aff_a700s:-:*:*:*:*:*:*:*
netapp hci_compute_node — cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*
netapp solidfire_baseboard_management_controller — cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*

References for CVE-2020-12464

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8 Release Notes Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b Patch Vendor Advisory
https://github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Third Party Advisory
https://lkml.org/lkml/2020/3/23/52 Exploit Vendor Advisory
https://patchwork.kernel.org/patch/11463781/ Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20200608-0001/ Third Party Advisory
https://usn.ubuntu.com/4387-1/ Third Party Advisory
https://usn.ubuntu.com/4388-1/ Third Party Advisory
https://usn.ubuntu.com/4389-1/ Third Party Advisory
https://usn.ubuntu.com/4390-1/ Third Party Advisory
https://usn.ubuntu.com/4391-1/ Third Party Advisory VDB Entry
https://www.debian.org/security/2020/dsa-4698 Third Party Advisory VDB Entry
https://www.debian.org/security/2020/dsa-4699 Third Party Advisory VDB Entry
cvelogic Threat Intelligence