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CVE-2026-55654

Опубликовано: 23 июн. 2026
Источник: ubuntu
Приоритет: low
EPSS Низкий
CVSS3: 3.7

Описание

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.

РелизСтатусПримечание
devel

deferred

2026-06-29
esm-infra-legacy/trusty

deferred

2026-06-29
esm-infra-legacy/xenial

deferred

2026-06-29
esm-infra/bionic

deferred

2026-06-29
esm-infra/focal

deferred

2026-06-29
fips-preview/jammy

deferred

2026-06-29
fips-updates/bionic

deferred

2026-06-29
fips-updates/focal

deferred

2026-06-29
fips-updates/jammy

deferred

2026-06-29
fips-updates/noble

deferred

2026-06-29

Показывать по

РелизСтатусПримечание
devel

ignored

esm-apps/bionic

ignored

esm-apps/focal

ignored

esm-apps/jammy

ignored

esm-apps/noble

ignored

esm-apps/resolute

ignored

jammy

ignored

noble

ignored

questing

ignored

resolute

ignored

Показывать по

EPSS

Процентиль: 32%
0.00396
Низкий

3.7 Low

CVSS3

Связанные уязвимости

CVSS3: 3.7
redhat
около 1 месяца назад

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.

CVSS3: 3.7
nvd
около 1 месяца назад

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.

CVSS3: 3.7
debian
около 1 месяца назад

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds ...

CVSS3: 3.7
github
около 1 месяца назад

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.

rocky
4 дня назад

Important: openssh security update

EPSS

Процентиль: 32%
0.00396
Низкий

3.7 Low

CVSS3