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CVE-2021-34741

Опубликовано: 04 нояб. 2021
Источник: nvd
CVSS3: 7.5
CVSS2: 5
EPSS Низкий

Описание

A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition.

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
Версия до 13.0.4 (исключая)
cpe:2.3:o:cisco:asyncos:13.5.3-010:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:13.7.0-093:*:*:*:*:*:*:*

Одно из

cpe:2.3:h:cisco:m170:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m190:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m380:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m390:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m390x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m680:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m690:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:m690x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s195:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s395:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s695:-:*:*:*:*:*:*:*

EPSS

Процентиль: 47%
0.00238
Низкий

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-770
CWE-770

Связанные уязвимости

CVSS3: 7.5
github
больше 3 лет назад

A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition.

CVSS3: 7.5
fstec
больше 4 лет назад

Уязвимость алгоритма программного обеспечения Cisco, связанная с недостаточной проверкой вводимых данных, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 47%
0.00238
Низкий

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-770
CWE-770