Описание
The cp utility in uutils coreutils, when performing recursive copies (-R), incorrectly treats character and block device nodes as stream sources rather than preserving them. Because the implementation reads bytes into regular files at the destination instead of using mknod, device semantics are destroyed (e.g., /dev/null becomes a regular file). This behavior can lead to runtime denial of service through disk exhaustion or process hangs when reading from unbounded device nodes.
Ссылки
- ExploitIssue Tracking
- Issue TrackingPatch
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Уязвимые конфигурации
EPSS
4.4 Medium
CVSS3
5.5 Medium
CVSS3
Дефекты
Связанные уязвимости
The cp utility in uutils coreutils, when performing recursive copies (-R), incorrectly treats character and block device nodes as stream sources rather than preserving them. Because the implementation reads bytes into regular files at the destination instead of using mknod, device semantics are destroyed (e.g., /dev/null becomes a regular file). This behavior can lead to runtime denial of service through disk exhaustion or process hangs when reading from unbounded device nodes.
The cp utility in uutils coreutils, when performing recursive copies ( ...
cp: -R reads device nodes as streams, destroying device semantics
EPSS
4.4 Medium
CVSS3
5.5 Medium
CVSS3