The USN-3707-1: NTP vulnerabilities are fixed automatically and installed on SecureDrop production instances. I received the following OSSEC alerts (one mail per alert).
OSSEC HIDS Notification. 2018 Jul 10 04:17:30 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/bin/ntpq' Old md5sum was: 'ffa0b570777879ca6ca497c8934bef7d' New md5sum is : '0b51d8e9753972c1083e8173bf11cbc0' Old sha1sum was: '1b0ab393c292569d2fee4bfea501e62fad05ae13' New sha1sum is : 'c8e67176c87a81b64015a84320f1bc84c7ef3f56' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:18:01 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/bin/sntp' Old md5sum was: '04d2b46bc7f0f5c99d7b233b31b95514' New md5sum is : '1783f50175a737f82992a6181063df21' Old sha1sum was: 'f354553c3321d1e9a391f3c6423ec1e0d7000346' New sha1sum is : '4d669f1e3d378f047e4e8b318a0e16b2251145b7' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:18:40 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/bin/ntpdc' Old md5sum was: 'e0cfedcefa03275e88b1141a581df0a6' New md5sum is : '89e84dbf4610db53071ee62e1c158373' Old sha1sum was: '3679e84d198a20b9c605192ced138711e00b8aa9' New sha1sum is : 'b80a3ef6d972ac4d668dcd2d1c5b24a395aca728' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:19:13 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/sbin/ntp-keygen' Old md5sum was: 'b45bdd861a62cf0dd25de05dd501209f' New md5sum is : '82cba70e9fb3cda11a6fb7e358aded7d' Old sha1sum was: '7a026c1a6d00bb414805a42e4bf998582aa10ae4' New sha1sum is : '344fd6363f9582bf926fc62630412e4766589a7a' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:19:20 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/sbin/ntpd' Old md5sum was: '5cf3c5b0008945dcd586fea4ab59c492' New md5sum is : '728c40ded2219cc22b4d9d0a1299b09a' Old sha1sum was: '4379630564650c4da6a3b72dcd87bc2b814f7d01' New sha1sum is : 'f3b0fc401c5564573b2a8b7910562c49cbdd3444' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:19:17 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/sbin/ntptime' Old md5sum was: '5d907c76fae036f5488b981441142a55' New md5sum is : '3d828e14b4890dbee93a689d6a625663' Old sha1sum was: '566191ba98bdfd046b6591efb7b5854f0acdbc9e' New sha1sum is : '049eb28853f4c76e63b48e1f9923a8a4a49d6a60' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:19:24 Received From: mon->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/sbin/ntpdate' Old md5sum was: '2767fd99374b893da98ae5f4bd470244' New md5sum is : 'c30130450c942d5b0a4c1c7885f275bc' Old sha1sum was: '13eaa7a1a82f36f351c2dca9a78a5364536c6077' New sha1sum is : '1330cb51d326435588a16d1267e83c03d93b8368' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:34:37 Received From: (app) A.B.C.D->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/sbin/ntpdate' Old md5sum was: '2767fd99374b893da98ae5f4bd470244' New md5sum is : 'c30130450c942d5b0a4c1c7885f275bc' Old sha1sum was: '13eaa7a1a82f36f351c2dca9a78a5364536c6077' New sha1sum is : '1330cb51d326435588a16d1267e83c03d93b8368' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:34:39 Received From: (app) A.B.C.D->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/bin/ntpdc' Old md5sum was: 'e0cfedcefa03275e88b1141a581df0a6' New md5sum is : '89e84dbf4610db53071ee62e1c158373' Old sha1sum was: '3679e84d198a20b9c605192ced138711e00b8aa9' New sha1sum is : 'b80a3ef6d972ac4d668dcd2d1c5b24a395aca728' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:34:39 Received From: (app) A.B.C.D->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/bin/ntpq' Old md5sum was: 'ffa0b570777879ca6ca497c8934bef7d' New md5sum is : '0b51d8e9753972c1083e8173bf11cbc0' Old sha1sum was: '1b0ab393c292569d2fee4bfea501e62fad05ae13' New sha1sum is : 'c8e67176c87a81b64015a84320f1bc84c7ef3f56' --END OF NOTIFICATION OSSEC HIDS Notification. 2018 Jul 10 04:34:39 Received From: (app) A.B.C.D->syscheck Rule: 550 fired (level 7) -> "Integrity checksum changed." Portion of the log(s): Integrity checksum changed for: '/usr/bin/sntp' Old md5sum was: '04d2b46bc7f0f5c99d7b233b31b95514' New md5sum is : '1783f50175a737f82992a6181063df21' Old sha1sum was: 'f354553c3321d1e9a391f3c6423ec1e0d7000346' New sha1sum is : '4d669f1e3d378f047e4e8b318a0e16b2251145b7' --END OF NOTIFICATION