Описание
There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives.
This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1
A flaw was found in the Python tarfile module. Processing a specially crafted tar archive, specifically an archive with negative offsets, can cause an infinite loop and deadlock. This issue results in a denial of service in the Python application using the tarfile module.
Отчет
To exploit this issue, an attacker needs to be able to process a specially crafted tar archive with a Python application using the tarfile module. Furthermore, this vulnerability will cause a denial of service with no other security impact.
Меры по смягчению последствий
This flaw can be mitigated by adding the following code after importing the tarfile module ("import tarfile"):
Затронутые пакеты
Платформа | Пакет | Состояние | Рекомендация | Релиз |
---|---|---|---|---|
Red Hat Enterprise Linux 10 | python3.12 | Affected | ||
Red Hat Enterprise Linux 6 | python | Affected | ||
Red Hat Enterprise Linux 7 | python | Affected | ||
Red Hat Enterprise Linux 7 | python3 | Affected | ||
Red Hat Enterprise Linux 8 | python3 | Affected | ||
Red Hat Enterprise Linux 8 | python3.11 | Affected | ||
Red Hat Enterprise Linux 8 | python3.12 | Affected | ||
Red Hat Enterprise Linux 8 | python36:3.6/python36 | Affected | ||
Red Hat Enterprise Linux 8 | python39:3.9/python39 | Affected | ||
Red Hat Enterprise Linux 8 | python39-devel:3.9/python39 | Affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1
There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1
There is a defect in the CPython \u201ctarfile\u201d module affecting ...
There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: import tarfile def _block_patched(self, count): if count < 0: # pragma: no cover raise tarfile.InvalidHeaderError("invalid offset") return _block_patched._orig_block(self, count) _block_patched._orig_block = tarfile.TarInfo._block tarfile.TarInfo._block = _block_patched
EPSS
7.5 High
CVSS3