vulnerability
Oracle Linux: CVE-2020-24394: ELSA-2020-5437: kernel security and bug fix update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:N/C:P/I:P/A:N) | Jun 5, 2020 | Sep 12, 2020 | Dec 3, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
Jun 5, 2020
Added
Sep 12, 2020
Modified
Dec 3, 2025
Description
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.
A vulnerability was found in NFSv4.2 in the Linux kernel, where a server fails to correctly apply umask when creating a new object on filesystem without ACL support (for example, ext4 with the "noacl" mount option). This flaw allows a local attacker with a user privilege to cause a kernel information leak problem.
A vulnerability was found in NFSv4.2 in the Linux kernel, where a server fails to correctly apply umask when creating a new object on filesystem without ACL support (for example, ext4 with the "noacl" mount option). This flaw allows a local attacker with a user privilege to cause a kernel information leak problem.
Solutions
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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