Описание
In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.
A flaw was found in GnuPG. An adversary can exploit this vulnerability by crafting a signed message that includes a form feed character (\f) at the end of a plaintext line. This allows the adversary to append additional, unsigned text to the message while the signature verification still reports success. This issue leads to an integrity bypass, potentially enabling the spoofing of signed communications.
Отчет
This vulnerability is rated Moderate for Red Hat products as it affects GnuPG, allowing an attacker to append unsigned text to a signed message while signature verification still reports success. This integrity bypass could lead to spoofing of signed communications, impacting the authenticity of signed data in Red Hat Enterprise Linux environments.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | gnupg2 | Fix deferred | ||
| Red Hat Enterprise Linux 6 | gnupg2 | Out of support scope | ||
| Red Hat Enterprise Linux 7 | gnupg2 | Fix deferred | ||
| Red Hat Enterprise Linux 8 | gnupg2 | Fix deferred | ||
| Red Hat Enterprise Linux 9 | gnupg2 | Fix deferred | ||
| Red Hat OpenShift AI (RHOAI) | rhoai/odh-ai-gateway-operator-rhel9 | Not affected | ||
| Red Hat OpenShift AI (RHOAI) | rhoai/odh-core-bff-rhel9 | Under investigation | ||
| Red Hat OpenShift AI (RHOAI) | rhoai/odh-dashboard-operator-rhel9 | Not affected | ||
| Red Hat OpenShift AI (RHOAI) | rhoai/odh-dashboard-rhel9 | Under investigation | ||
| Red Hat OpenShift AI (RHOAI) | rhoai/odh-data-science-pipelines-operator-controller-rhel9 | Not affected |
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Дополнительная информация
Статус:
EPSS
5.9 Medium
CVSS3
Связанные уязвимости
In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.
In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.
In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.
In GnuPG through 2.4.8, if a signed message has \f at the end of a pla ...
EPSS
5.9 Medium
CVSS3