Описание
pypdf: Possible long runtimes/large memory usage when retrieving outlines
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires accessing the outlines of a document with either lots of entries or nested outlines with long re-used nesting paths.
Patches
This has been fixed in pypdf==6.16.1.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3966.
Пакеты
pypdf
< 6.16.1
6.16.1
Связанные уязвимости
(pypdf is a free and open-source pure-python PDF library. Prior to 6.16 ...)
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
pypdf is a free and open-source pure-python PDF library. Prior to 6.16 ...
Уязвимость функции _get_outline() файла pypdf/_doc_common.py библиотеки Python для работы с PDF файлами PyPDF, позволяющая нарушителю вызвать отказ в обслуживании