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CVE-2026-32884

Опубликовано: 30 мар. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 5.9

Описание

Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by the DNS name constraints, even though this check is technically not required by RFC 5280. However this check failed to account for the possibility of a mixed-case CN. Thus a certificate with CN=Sub.EVIL.COM and no subject alternative name would bypasses an excludedSubtrees constraint for evil.com because the comparison is case-sensitive. This issue has been patched in version 3.11.0.

РелизСтатусПримечание
devel

DNE

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-apps-legacy/xenial

needs-triage

esm-apps/bionic

needs-triage

esm-apps/xenial

ignored

end of ESM support, was needs-triage
esm-infra-legacy/trusty

needs-triage

jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-apps/resolute

needs-triage

jammy

DNE

noble

DNE

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

needs-triage

Показывать по

EPSS

Процентиль: 5%
0.00158
Низкий

5.9 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
redhat
4 месяца назад

Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by the DNS name constraints, even though this check is technically not required by RFC 5280. However this check failed to account for the possibility of a mixed-case CN. Thus a certificate with CN=Sub.EVIL.COM and no subject alternative name would bypasses an excludedSubtrees constraint for evil.com because the comparison is case-sensitive. This issue has been patched in version 3.11.0.

CVSS3: 5.9
nvd
4 месяца назад

Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by the DNS name constraints, even though this check is technically not required by RFC 5280. However this check failed to account for the possibility of a mixed-case CN. Thus a certificate with CN=Sub.EVIL.COM and no subject alternative name would bypasses an excludedSubtrees constraint for evil.com because the comparison is case-sensitive. This issue has been patched in version 3.11.0.

CVSS3: 5.9
debian
4 месяца назад

Botan is a C++ cryptography library. Prior to version 3.11.0, during p ...

suse-cvrf
3 месяца назад

Security update for Botan

CVSS3: 5.9
fstec
4 месяца назад

Уязвимость компонента X.509 Certificate Handler криптографической библиотеки C++ Botan, позволяющая нарушителю подделать ответы OCSP

EPSS

Процентиль: 5%
0.00158
Низкий

5.9 Medium

CVSS3