CVE-2009-1252
Publication date 19 May 2009
Last updated 24 July 2024
Ubuntu priority
Description
Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.
Notes
jdstrand
from CERT: If autokey is enabled (the ntp.conf file contains the line "crypto pw whatever" a remote attacker can send a carefully crafted packet that can overflow a stack buffer and potentially allow for malicious code to be executed with the privilege level of the ntpd process.