CVE-2020-12464
Vulnerability Summary
Timeline
Description
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 0.08%• Percentile: 23%
Techniques & Countermeasures
- CWE-416•Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected Systems
- linux•linux_kernel
< 3.16.85 | ≥ 3.17, < 4.4.221 | ≥ 4.5, < 4.9.221 | ≥ 4.10, < 4.14.178 | ≥ 4.15, < 4.19.119 | ≥ 4.20, < 5.4.36 | ≥ 5.5, < 5.6.8
- netapp•active_iq_unified_manager
na
- netapp•aff_a700s
na
- netapp•cloud_backup
na
- netapp•hci_baseboard_management_controller
h300s | h410c | h410s | h500s | h610c | h610s | h615c | h700s
- netapp•hci_compute_node_firmware
na
- netapp•hci_storage_nodes
na
- netapp•solidfire_\&_hci_storage_node
na
- netapp•solidfire_baseboard_management_controller_firmware
na
- netapp•steelstore_cloud_integrated_storage
na
References (17)
- https://patchwork.kernel.org/patch/11463781/
- https://lkml.org/lkml/2020/3/23/52
- https://github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
- https://security.netapp.com/advisory/ntap-20200608-0001/
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://www.debian.org/security/2020/dsa-4698
- https://www.debian.org/security/2020/dsa-4699
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- https://usn.ubuntu.com/4388-1/
- https://usn.ubuntu.com/4389-1/
- https://usn.ubuntu.com/4387-1/
- https://usn.ubuntu.com/4390-1/
- https://usn.ubuntu.com/4391-1/