CVE-2023-49298

https://notcve.org/view.php?id=CVE-2023-49298

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. • https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275308 https://bugs.gentoo.org/917224 https://github.com/openzfs/zfs/issues/15526 https://github.com/openzfs/zfs/pull/15571 https://github.com/openzfs/zfs/releases/tag/zfs-2.1.14 https://github.com/openzfs/zfs/releases/tag/zfs-2.2.2 https://lists.debian.org/debian-lts-announce/2024/03/msg00019.html https://news.ycombinator.com/item?id=38405731 https://news.ycombinator.com/item?id=38770168 https://web.archive • CWE-639: Authorization Bypass Through User-Controlled Key •