Описание
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.
A stack-based buffer overflow was found in the way the NTP autokey protocol was implemented. When an NTP client decrypted a secret received from an NTP server, it could cause that client to crash.
Отчет
This issue affects the versions of ntp as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. A mitigation for Red Hat Enterprise Linux 6 and 7 is available at: https://bugzilla.redhat.com/show_bug.cgi?id=1184573#c16
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | ntp | Will not fix | ||
| Red Hat Enterprise Linux 6 | ntp | Fixed | RHSA-2015:1459 | 21.07.2015 |
| Red Hat Enterprise Linux 7 | ntp | Fixed | RHSA-2015:2231 | 19.11.2015 |
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Дополнительная информация
Статус:
EPSS
2.6 Low
CVSS2
Связанные уязвимости
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentic ...
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.
ELSA-2015-2231: ntp security, bug fix, and enhancement update (MODERATE)
EPSS
2.6 Low
CVSS2