A vulnerability has been reported in NTP, which can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the "crypto_recv()" function in ntpd/ntp_crypto.c. This can be exploited to cause a stack-based buffer overflow via a specially crafted packet sent to the "ntpd".
Successful exploitation allows execution of arbitrary code, but requires that Autokey Authentication is configured via "crypto pw [password]" in ntp.conf.
The vulnerability is reported in versions prior to 4.2.4p7.
Solution: Update to version 4.2.4p7.
Provided and/or discovered by: The vendor credits Chris Ries of CMU.
Original Advisory: https://lists.ntp.org/pipermail/announce/2009-May/000062.html
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to email@example.com