CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
43.7%
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.
bugs.freebsd.org/bugzilla/show_bug.cgi?id=275308
bugs.gentoo.org/917224
github.com/openzfs/zfs/issues/15526
github.com/openzfs/zfs/pull/15571
github.com/openzfs/zfs/releases/tag/zfs-2.1.14
github.com/openzfs/zfs/releases/tag/zfs-2.2.2
lists.debian.org/debian-lts-announce/2024/03/msg00019.html
news.ycombinator.com/item?id=38405731
news.ycombinator.com/item?id=38770168
security.alpinelinux.org/vuln/CVE-2023-49298
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
www.theregister.com/2023/12/04/two_new_versions_of_openzfs/
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
43.7%