Описание
Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsing path. It is triggered when a client sends a TLS close_notify mid-body during a CHUNKING transfer, followed by a final cleartext byte on the same TCP connection. This can lead to heap corruption. An unauthenticated network attacker exploiting this vulnerability could execute arbitrary code.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | released | 4.99.1-1ubuntu2 |
| esm-infra-legacy/trusty | ignored | changes too intrusive |
| esm-infra-legacy/xenial | ignored | changes too intrusive |
| esm-infra/bionic | ignored | changes too intrusive |
| esm-infra/focal | released | 4.93-13ubuntu1.12+esm1 |
| esm-infra/xenial | ignored | end of ESM support, was needs-triage |
| jammy | released | 4.95-4ubuntu2.8 |
| noble | released | 4.97-4ubuntu4.5 |
| questing | released | 4.98.2-1ubuntu2.2 |
| resolute | released | 4.99.1-1ubuntu1.2 |
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EPSS
9.8 Critical
CVSS3
Связанные уязвимости
Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsing path. It is triggered when a client sends a TLS close_notify mid-body during a CHUNKING transfer, followed by a final cleartext byte on the same TCP connection. This can lead to heap corruption. An unauthenticated network attacker exploiting this vulnerability could execute arbitrary code.
Exim before 4.99.3, in certain GnuTLS configurations, has a remotely r ...
Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsing path. It is triggered when a client sends a TLS close_notify mid-body during a CHUNKING transfer, followed by a final cleartext byte on the same TCP connection. This can lead to heap corruption. An unauthenticated network attacker exploiting this vulnerability could execute arbitrary code.
Уязвимость функции ungetc() компонента BDAT/CHUNKING почтового сервера Exim, позволяющая нарушителю выполнить произвольный код
EPSS
9.8 Critical
CVSS3