Описание
A flaw was found in glibc. A remote attacker could exploit this vulnerability by providing specially crafted input during SHIFT_JISX0213 to UCS-4 text conversion. This crafted input can cause the application to repeatedly emit a buffered code point without consuming further input, leading to persistent retry churn. This can result in a denial of service (DoS) for callers converting untrusted text.
Отчет
This Moderate impact flaw in glibc's SHIFT_JISX0213 to UCS-4 conversion can lead to a denial of service. Exploitation requires an attacker to provide specially crafted input that an application converts using this specific path, triggering a 2-byte sequence and a caller that retries after an E2BIG error with insufficient output space. Red Hat products are only affected if they utilize this uncommon conversion path and exhibit the described retry behavior.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | glibc | Under investigation | ||
| Red Hat Enterprise Linux 6 | compat-glibc | Under investigation | ||
| Red Hat Enterprise Linux 6 | glibc | Under investigation | ||
| Red Hat Enterprise Linux 7 | compat-glibc | Under investigation | ||
| Red Hat Enterprise Linux 7 | glibc | Under investigation | ||
| Red Hat Enterprise Linux 8 | glibc | Under investigation | ||
| Red Hat Enterprise Linux 9 | glibc | Under investigation | ||
| Red Hat Hardened Images | filesystem | Under investigation | ||
| Red Hat Hardened Images | glibc | Under investigation | ||
| Red Hat OpenShift Container Platform 4 | rhcos | Under investigation |
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Дополнительная информация
Статус:
5.9 Medium
CVSS3
Связанные уязвимости
5.9 Medium
CVSS3