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CVE-2026-5188

Опубликовано: 10 апр. 2026
Источник: ubuntu
Приоритет: medium
CVSS3: 8.1

Описание

An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name (SAN) extension of X.509 certificates. A malformed certificate can specify an entry length larger than the enclosing sequence, causing the internal length counter to wrap during parsing. This results in incorrect handling of certificate data. The issue is limited to configurations using the original ASN.1 parsing implementation which is off by default.

РелизСтатусПримечание
devel

needs-triage

esm-apps-legacy/xenial

needs-triage

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

esm-apps/resolute

needs-triage

esm-apps/xenial

ignored

end of ESM support, was needs-triage
jammy

needs-triage

noble

needs-triage

Показывать по

8.1 High

CVSS3

Связанные уязвимости

CVSS3: 8.1
nvd
4 месяца назад

An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name (SAN) extension of X.509 certificates. A malformed certificate can specify an entry length larger than the enclosing sequence, causing the internal length counter to wrap during parsing. This results in incorrect handling of certificate data. The issue is limited to configurations using the original ASN.1 parsing implementation which is off by default.

msrc
4 месяца назад

Integer underflow in X.509 SAN parsing in wolfSSL

CVSS3: 8.1
debian
4 месяца назад

An integer underflow issue exists in wolfSSL when parsing the Subject ...

CVSS3: 8.1
github
4 месяца назад

An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name (SAN) extension of X.509 certificates. A malformed certificate can specify an entry length larger than the enclosing sequence, causing the internal length counter to wrap during parsing. This results in incorrect handling of certificate data. The issue is limited to configurations using the original ASN.1 parsing implementation which is off by default.

8.1 High

CVSS3