Описание
GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| tar | fixed | 1.30+dfsg-3.1 | package |
Примечания
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug
https://news.ycombinator.com/item?id=18745431
https://twitter.com/thatcks/status/1076166645708668928
https://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html
Fixed by https://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42c
Связанные уязвимости
GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).
GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).
GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).
GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).
Уязвимость фунции sparse_dump_region архиватора GNU Tar, связанная с чтением за границами буфера, позволяющая нарушителю вызвать отказ в обслуживании