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CVE-2026-42771

Опубликовано: 09 июн. 2026
Источник: ubuntu
Приоритет: low
CVSS3: 6.2

Описание

Issue summary: When the X509_VERIFY_PARAM_set1_email is called by an application to validate a crafted e-mail address, such as during S/MIME message validation, an out of bounds read can happen. Impact summary: This out of bounds read will not directly exfiltrate the data read to the attacker so the most likely result is a crash and a Denial of Service. An internal helper function called from X509_VERIFY_PARAM_[set|add]_email() used a wrong length when validating the local part of an email address. This could cause the 64 octet limit on the local part of an email address to be not enforced, or cause an out of bound read and potentially a crash. The bug is reachable via S-MIME validation with a crafted From: address supplied in an email message that can potentially cause a crash. No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.

РелизСтатусПримечание
devel

not-affected

4.0+ only
esm-apps-legacy/xenial

not-affected

4.0+ only
esm-apps/bionic

not-affected

4.0+ only
esm-infra/focal

not-affected

4.0+ only
jammy

not-affected

4.0+ only
noble

not-affected

4.0+ only
questing

not-affected

4.0+ only
resolute

not-affected

4.0+ only
upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

not-affected

uses system openssl
esm-apps-legacy/xenial

not-affected

4.0+ only
esm-apps/bionic

not-affected

4.0+ only
esm-apps/focal

not-affected

uses system openssl
esm-apps/jammy

needed

esm-apps/noble

not-affected

uses system openssl
esm-apps/resolute

not-affected

uses system openssl
esm-infra-legacy/trusty

not-affected

uses system openssl
jammy

needed

noble

not-affected

uses system openssl

Показывать по

РелизСтатусПримечание
devel

not-affected

4.0+ only
esm-infra-legacy/trusty

not-affected

4.0+ only
esm-infra-legacy/xenial

not-affected

4.0+ only
esm-infra/bionic

not-affected

4.0+ only
esm-infra/focal

not-affected

4.0+ only
fips-preview/jammy

not-affected

4.0+ only
fips-updates/bionic

not-affected

4.0+ only
fips-updates/focal

not-affected

4.0+ only
fips-updates/jammy

not-affected

4.0+ only
fips-updates/xenial

not-affected

4.0+ only

Показывать по

РелизСтатусПримечание
devel

DNE

fips-preview/jammy

not-affected

4.0+ only
fips-updates/jammy

not-affected

4.0+ only
fips-updates/noble

not-affected

4.0+ only
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

not-affected

4.0+ only
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

needs-triage

Показывать по

Ссылки на источники

6.2 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.2
nvd
2 месяца назад

Issue summary: When the X509_VERIFY_PARAM_set1_email is called by an application to validate a crafted e-mail address, such as during S/MIME message validation, an out of bounds read can happen. Impact summary: This out of bounds read will not directly exfiltrate the data read to the attacker so the most likely result is a crash and a Denial of Service. An internal helper function called from X509_VERIFY_PARAM_[set|add]_email() used a wrong length when validating the local part of an email address. This could cause the 64 octet limit on the local part of an email address to be not enforced, or cause an out of bound read and potentially a crash. The bug is reachable via S-MIME validation with a crafted From: address supplied in an email message that can potentially cause a crash. No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.

CVSS3: 6.2
debian
2 месяца назад

Issue summary: When the X509_VERIFY_PARAM_set1_email is called by an a ...

CVSS3: 6.2
github
2 месяца назад

Issue summary: When the X509_VERIFY_PARAM_set1_email is called by an application to validate a crafted e-mail address, such as during S/MIME message validation, an out of bounds read can happen. Impact summary: This out of bounds read will not directly exfiltrate the data read to the attacker so the most likely result is a crash and a Denial of Service. An internal helper function called from X509_VERIFY_PARAM_[set|add]_email() used a wrong length when validating the local part of an email address. This could cause the 64 octet limit on the local part of an email address to be not enforced, or cause an out of bound read and potentially a crash. The bug is reachable via S-MIME validation with a crafted From: address supplied in an email message that can potentially cause a crash. No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.

6.2 Medium

CVSS3