OpenZFS up to and including 2.1.13 and 2.2.x up to and including 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 prior to 2.1.4, because of the default configuration in those versions.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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openzfs openzfs |
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openzfs openzfs 2.2.0 |
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