Описание
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an incorrect integer conversion in event_tagging.c when evtag_unmarshal_header uses evtag_decode_int to decode an attacker-controlled uint32 payload length and returns it as a signed int. Values above INT_MAX become negative or truncated, and evtag_unmarshal_string can use the converted value in allocation sizing, producing a wrapped large allocation request and denial of service. 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 has an incorrect integer conversion in event_tagging.c when evtag_unmarshal_header uses evtag_decode_int to decode an attacker-controlled uint32 payload length and returns it as a signed int. Values above INT_MAX become negative or truncated, and evtag_unmarshal_string can use the converted value in allocation sizing, producing a wrapped large allocation request and denial of service. 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 has an incorrect integer conversion in event_tagging.c when evtag_unmarshal_header uses evtag_decode_int to decode an attacker-controlled uint32 payload length and returns it as a signed int. Values above INT_MAX become negative or truncated, and evtag_unmarshal_string can use the converted value in allocation sizing, producing a wrapped large allocation request and denial of service. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.
Libevent: `evtag_unmarshal_header()` decodes a wire `uint32` length into a signed `int` return value.
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-a ...
Уязвимость функции evtag_unmarshal_header() библиотеки асинхронного уведомления событий Libevent, позволяющая нарушителю вызвать отказ в обслуживании
EPSS