Описание
HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer one.
A flaw was found in the HAProxy. This issue can allow a buffer overflow via improper length checking when replacing multiple regex back-references in a string. Specifically, the replacement size is incorrectly validated against the output buffer instead of the temporary trash buffer used during substitution. If multiple matches are replaced with strings larger than the available buffer size, this can lead to a memory overwrite.
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 Ceph Storage 5 | haproxy | Fix deferred | ||
| Red Hat Enterprise Linux 10 | haproxy | Fix deferred | ||
| Red Hat Enterprise Linux 7 | haproxy | Out of support scope | ||
| Red Hat Enterprise Linux 8 | haproxy | Not affected | ||
| Red Hat Enterprise Linux 9 | haproxy | Fix deferred | ||
| Red Hat OpenShift Container Platform 4 | haproxy | Fix deferred |
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Дополнительная информация
Статус:
6.8 Medium
CVSS3
Связанные уязвимости
HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer one.
HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer one.
HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a s ...
6.8 Medium
CVSS3