Описание
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| rsyslog | fixed | 8.2608.0-4 | package | |
| rsyslog | fixed | 8.2504.0-1+deb13u2 | trixie | package |
| rsyslog | postponed | bookworm | package |
Примечания
https://github.com/rsyslog/rsyslog/security/advisories/GHSA-g72f-gc6v-f2w3
https://github.com/rsyslog/rsyslog/pull/7525
https://github.com/rsyslog/rsyslog/commit/667e3f61aec5ee02c5c2ee6f0f8accf6fe4301a9
https://www.openwall.com/lists/oss-security/2026/08/29/1
EPSS
Связанные уязвимости
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
Rsyslog: rsyslog: denial of service via heap buffer overflow in rainerscript replace() function
EPSS