vulnerability
Arch Linux: Insufficient validation (CVE-2021-20288)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:P/I:P/A:P) | Apr 15, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
Apr 15, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
An authentication flaw was found in ceph before version 15.2.11. When the monitor handles CEPHX_GET_AUTH_SESSION_KEY requests, it doesn't sanitize other_keys, allowing key reuse. An attacker who can request a global_id can exploit the ability of any user to request a global_id previously associated with another user, as ceph does not force the reuse of old keys to generate new ones.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-20288
- https://attackerkb.com/topics/CVE-2021-20288
- URL-https://bugzilla.redhat.com/show_bug.cgi?id=1938031
- URL-https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/
- URL-https://security.archlinux.org/ASA-202105-3
- URL-https://security.gentoo.org/glsa/202105-39
- CWE-287
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