7.5

CVE-2023-49298

Exploit
OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenarios involving applications that try to rely on efficient copying of file data, can replace file contents with zero-valued bytes and thus potentially disable security mechanisms. NOTE: this issue is not always security related, but can be security related in realistic situations. A possible example is cp, from a recent GNU Core Utilities (coreutils) version, when attempting to preserve a rule set for denying unauthorized access. (One might use cp when configuring access control, such as with the /etc/hosts.deny file specified in the IBM Support reference.) NOTE: this issue occurs less often in version 2.2.1, and in versions before 2.1.4, because of the default configuration in those versions.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openzfs ≫ Openzfs Version <= 2.1.13
   Freebsd ≫ Freebsd Version14.0 Update-
Openzfs ≫ Openzfs Version2.2.0 Update-
   Freebsd ≫ Freebsd Version14.0 Update-
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.16% 0.629
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-639 Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

https://lists.debian.org/debian-lts-announce/2024/03/msg00019.html
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275308
Patch
Issue Tracking
https://bugs.gentoo.org/917224
https://github.com/openzfs/zfs/issues/15526
Patch
Vendor Advisory
Exploit
Issue Tracking
https://github.com/openzfs/zfs/pull/15571
Patch
Vendor Advisory
Exploit
https://github.com/openzfs/zfs/releases/tag/zfs-2.1.14
https://github.com/openzfs/zfs/releases/tag/zfs-2.2.2
https://news.ycombinator.com/item?id=38405731
Patch
Third Party Advisory
https://news.ycombinator.com/item?id=38770168
https://web.archive.org/web/20231124172959/https://www.ibm.com/support/pages/how-remove-missing%C2%A0newline%C2%A0or%C2%A0line%C2%A0too%C2%A0long-error-etchostsallow%C2%A0and%C2%A0etchostsdeny-files
Third Party Advisory
https://www.theregister.com/2023/12/04/two_new_versions_of_openzfs/
https://lists.debian.org/debian-lts-announce/2025/04/msg00009.html