Описание
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/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| pypdf | unfixed | package | ||
| pypdf | no-dsa | trixie | package | |
| pypdf | postponed | bookworm | package | |
| pypdf2 | removed | package |
Примечания
https://github.com/py-pdf/pypdf/security/advisories/GHSA-763m-79hh-57f2
https://github.com/py-pdf/pypdf/pull/3966
https://github.com/py-pdf/pypdf/commit/d91ab705fd81ed1a9cec175c6958600dea1a4942 (6.16.1)
EPSS
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/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. 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/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.
pypdf: Possible long runtimes/large memory usage when extracting XForm objects
Уязвимость функций PageObject._extract_text() и PageObject.extract_xform_text() библиотеки Python для работы с PDF файлами PyPDF, позволяющая нарушителю вызвать отказ в обслуживании
EPSS