Описание
rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.
A flaw was found in rsync. A remote attacker could exploit an out-of-bounds write vulnerability in the read_args() function by sending a specially crafted argument list. This could lead to corruption of adjacent memory, potentially causing a denial of service or, in some cases, arbitrary code execution.
Отчет
This is an Important severity flaw in rsync, allowing a remote attacker to corrupt heap memory via a specially crafted argument list. The vulnerability, exploitable without authentication or user interaction, could lead to denial of service or potentially arbitrary code execution, elevating its impact beyond Moderate due to the remote, unauthenticated nature of the attack.
Меры по смягчению последствий
To mitigate this issue, restrict network access to rsync services to trusted hosts and networks using firewall rules. If rsync is used in daemon mode, configure rsyncd.conf to limit access. When using rsync as a client, avoid synchronizing with untrusted rsync servers.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | rsync | Affected | ||
| Red Hat Enterprise Linux 7 | rsync | Affected | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Affected | ||
| Red Hat OpenShift Container Platform 5 | openshift/ose-rhel-coreos-9 | Affected | ||
| Red Hat Enterprise Linux 10 | rsync | Fixed | RHSA-2026:67463 | 14.09.2026 |
| Red Hat Enterprise Linux 8 | rsync | Fixed | RHSA-2026:74095 | 30.09.2026 |
| Red Hat Enterprise Linux 9 | rsync | Fixed | RHSA-2026:67462 | 14.09.2026 |
| Red Hat Enterprise Linux 9 | rsync | Fixed | RHSA-2026:67462 | 14.09.2026 |
| Red Hat OpenShift Container Platform 4.22 | openshift/ose-rhel-coreos | Fixed | RHSA-2026:71446 | 29.09.2026 |
| Red Hat Cost Management On-Premise 1 | costmanagement/costmanagement-ui-rhel10 | Fixed | RHSA-2026:79357 | 08.10.2026 |
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Дополнительная информация
Статус:
EPSS
8.2 High
CVSS3
Связанные уязвимости
rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.
rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.
rsync 3.0.1 < 3.5.0 Heap Out-of-Bounds Write via read_args()
rsync 3.0.1 before 3.5.0contains an out-of-bounds write vulnerability ...
Уязвимость функции read_args() утилиты для передачи и синхронизации файлов Rsync, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
8.2 High
CVSS3