vulnerability
Ubuntu: (CVE-2020-25220): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Sep 10, 2020 | Nov 19, 2024 | Sep 5, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Sep 10, 2020
Added
Nov 19, 2024
Modified
Sep 5, 2025
Description
The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.
Solutions
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-fipsubuntu-upgrade-linux-aws-hweubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-4-15ubuntu-upgrade-linux-azure-fipsubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gcp-4-15ubuntu-upgrade-linux-gke-4-15ubuntu-upgrade-linux-hweubuntu-upgrade-linux-kvmubuntu-upgrade-linux-oemubuntu-upgrade-linux-oracleubuntu-upgrade-linux-raspi2ubuntu-upgrade-linux-snapdragon
References
- CVE-2020-25220
- https://attackerkb.com/topics/CVE-2020-25220
- CWE-416
- URL-https://bugzilla.redhat.com/show_bug.cgi?id=1868453
- URL-https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194
- URL-https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140
- URL-https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233
- URL-https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e
- URL-https://www.cve.org/CVERecord?id=CVE-2020-25220
- URL-https://www.spinics.net/lists/stable/msg405099.html
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