Source: zfs-linux Version: 2.1.13-1 Severity: important Tags: security upstream Forwarded: https://github.com/openzfs/zfs/issues/15526 X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Hi, The following vulnerability was published for zfs-linux. CVE-2023-49298[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2023-49298 https://www.cve.org/CVERecord?id=CVE-2023-49298 [1] https://github.com/openzfs/zfs/issues/15526 [2] https://github.com/openzfs/zfs/pull/15571 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
