Описание
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent can read beyond a contiguous evbuffer region in event_tagging.c when decode_tag_internal requests at most five bytes from evbuffer_pullup but iterates using the full logical buffer length. A fragmented evbuffer containing a six-byte malformed tag can therefore advance past the pullup window and trigger an out-of-bounds read, which can crash a process that decodes attacker-controlled tagged RPC data. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 2.1.13-stable-1build1 |
| esm-infra-legacy/trusty | released | 2.0.21-stable-1ubuntu1.14.04.2+esm1 |
| esm-infra-legacy/xenial | released | 2.0.21-stable-2ubuntu0.16.04.1+esm1 |
| esm-infra/bionic | released | 2.1.8-stable-4ubuntu0.1~esm1 |
| esm-infra/focal | released | 2.1.11-stable-1ubuntu0.1~esm1 |
| jammy | released | 2.1.12-stable-1ubuntu0.1 |
| noble | released | 2.1.12-stable-9ubuntu2.1 |
| resolute | released | 2.1.12-stable-10ubuntu0.1 |
| upstream | released | 2.1.13 |
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Связанные уязвимости
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent can read beyond a contiguous evbuffer region in event_tagging.c when decode_tag_internal requests at most five bytes from evbuffer_pullup but iterates using the full logical buffer length. A fragmented evbuffer containing a six-byte malformed tag can therefore advance past the pullup window and trigger an out-of-bounds read, which can crash a process that decodes attacker-controlled tagged RPC data. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent can read beyond a contiguous evbuffer region in event_tagging.c when decode_tag_internal requests at most five bytes from evbuffer_pullup but iterates using the full logical buffer length. A fragmented evbuffer containing a six-byte malformed tag can therefore advance past the pullup window and trigger an out-of-bounds read, which can crash a process that decodes attacker-controlled tagged RPC data. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-a ...
Уязвимость функции decode_tag_internal() библиотеки асинхронного уведомления событий Libevent, позволяющая нарушителю вызвать отказ в обслуживании
EPSS