Описание
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
A flaw was found in libxml2. This issue occurs when hashing empty strings which aren't null-terminated, xmlDictComputeFastKey could produce inconsistent results, which may lead to various logic or memory errors, including double free errors.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| CloudForms Management Engine 5 | rubygem-nokogiri | Not affected | ||
| Red Hat 3scale API Management Platform 2 | nokogiri | Not affected | ||
| Red Hat Enterprise Linux 6 | libxml2 | Out of support scope | ||
| Red Hat Enterprise Linux 7 | libxml2 | Out of support scope | ||
| Red Hat Satellite 6 | tfm-rubygem-nokogiri | Not affected | ||
| Red Hat Enterprise Linux 8 | libxml2 | Fixed | RHSA-2023:4529 | 08.08.2023 |
| Red Hat Enterprise Linux 8 | libxml2 | Fixed | RHSA-2023:4529 | 08.08.2023 |
| Red Hat Enterprise Linux 8.6 Extended Update Support | libxml2 | Fixed | RHSA-2024:0413 | 25.01.2024 |
| Red Hat Enterprise Linux 9 | libxml2 | Fixed | RHSA-2023:4349 | 01.08.2023 |
| Red Hat Enterprise Linux 9 | libxml2 | Fixed | RHSA-2023:4349 | 01.08.2023 |
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Дополнительная информация
Статус:
5.9 Medium
CVSS3
Связанные уязвимости
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
An issue was discovered in libxml2 before 2.10.4. When hashing empty d ...
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
5.9 Medium
CVSS3