CVE-2020-12464
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.80% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 56.2% of scored records. A rank, not a probability.
- NVD base score
- 6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-04-29 17:59Z6 YR AGO
- Last updated
- 2024-08-04 11:56Z2 YR AGO
- Reserved
- 2020-04-29
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- 56a73475e4a37f967d375340868656159a990e7af866b3bb991bf3e0c2b21174
05 Affected products
06 References
- patchwork.kernel.orghttps://patchwork.kernel.org/patch/11463781/
- lkml.orghttps://lkml.org/lkml/2020/3/23/52
- github.comhttps://github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b
- git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b
- cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200608-0001/
- lists.debian.org[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- lists.debian.org[debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- lists.debian.org[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- www.debian.orgDSA-4698https://www.debian.org/security/2020/dsa-4698
- www.debian.orgDSA-4699https://www.debian.org/security/2020/dsa-4699
- lists.opensuse.orgopenSUSE-SU-2020:0801http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- usn.ubuntu.comUSN-4388-1https://usn.ubuntu.com/4388-1/
- usn.ubuntu.comUSN-4389-1https://usn.ubuntu.com/4389-1/
- usn.ubuntu.comUSN-4387-1https://usn.ubuntu.com/4387-1/
- usn.ubuntu.comUSN-4390-1https://usn.ubuntu.com/4390-1/
- usn.ubuntu.comUSN-4391-1https://usn.ubuntu.com/4391-1/
07 Fixed in
AlmaLinux 8
- kernel-tools-libs-devel Fixed in 4.18.0-305.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- kernel-tools-libs-devel Fixed in 4.18.0-305.el8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 5.6.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.6.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.6.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-184.214
- linux-aws Fixed in 4.4.0-1109.120
- linux-aws-hwe Fixed in 4.15.0-1073.77~16.04.1
- linux-azure Fixed in 4.15.0-1089.99~16.04.1
- linux-gcp Fixed in 4.15.0-1077.87~16.04.1
- linux-hwe Fixed in 4.15.0-106.107~16.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1075.82
- linux-oracle Fixed in 4.15.0-1045.49~16.04.1
- linux-raspi2 Fixed in 4.4.0-1134.143
- linux-snapdragon Fixed in 4.4.0-1138.146
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-106.107
- linux-aws Fixed in 4.15.0-1073.77
- linux-aws-5.0 No fix yet
- linux-aws-5.3 Fixed in 5.3.0-1023.25~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1089.99
- linux-azure-5.3 Fixed in 5.3.0-1028.29~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1077.87
- linux-gcp-5.3 Fixed in 5.3.0-1026.28~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 Fixed in 4.15.0-1063.66
- linux-gke-5.0 Fixed in 5.0.0-1042.43
- linux-gke-5.3 Fixed in 5.3.0-1026.28~18.04.1
- linux-hwe Fixed in 5.3.0-59.53~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1067.68
- linux-oem Fixed in 4.15.0-1087.97
- linux-oem-osp1 Fixed in 5.0.0-1059.64
- linux-oracle Fixed in 4.15.0-1045.49
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 Fixed in 5.3.0-1024.26~18.04.1
- linux-raspi2 Fixed in 4.15.0-1063.67
- linux-raspi2-5.3 Fixed in 5.3.0-1027.29~18.04.1
- linux-snapdragon Fixed in 4.15.0-1080.87
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-37.41
- linux-aws Fixed in 5.4.0-1015.15
- linux-azure Fixed in 5.4.0-1016.16
- linux-azure-fde No fix yet
- linux-gcp Fixed in 5.4.0-1015.15
- linux-gke No fix yet
- linux-kvm Fixed in 5.4.0-1015.15
- linux-oem-5.6 Fixed in 5.6.0-1010.10
- linux-oracle Fixed in 5.4.0-1015.15
- linux-raspi Fixed in 5.4.0-1012.12
- linux-raspi2 No fix yet
- linux-riscv Fixed in 5.4.0-27.31
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux No fix yet
- linux-aws Fixed in 4.4.0-1073.77Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1089.99~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-184.214~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1041.46Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2018.18Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2006.7Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1034.39Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.