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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1596 ntp security update 6 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ntp Publisher: Debian Operating System: UNIX variants (UNIX, Linux, OSX) Windows Debian GNU/Linux 8 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-11868 Original Bulletin: https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running ntp check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- Package : ntp Version : 1:4.2.6.p5+dfsg-7+deb8u3 CVE ID : CVE-2020-11868 A Denial of Service (DoS) vulnerability was discovered in the network time protocol server/client, ntp. ntp allowed an "off-path" attacker to block unauthenticated synchronisation via a server mode packet with a spoofed source IP address because transmissions were rescheduled even if a packet lacked a valid "origin timestamp" For Debian 8 "Jessie", this issue has been fixed in ntp version 1:4.2.6.p5+dfsg-7+deb8u3. We recommend that you upgrade your ntp packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXrH+J2aOgq3Tt24GAQh9ixAApRD7835nju1uRInL1UY27uxGVSstDJLs rzcpodZ75aagXpfWi2UzAC4jz62Beiopety7tEBb+Zzat+94cElzEOxe5DYUbLyq eOJGRShRtmE+MTHIzgfzWEV0GgIsI+fNRhjLi1vwmKdLOZILYByr7JLmXNdNPoxx lMfkXJLYKPmY4Ah17K9eMkZgGq2J0RQTHGRlA1GeP+4MDOnRKjQw7tVPAfE/HMq9 t1dK6KwpfYWdVrqu1JmdRDHd1CvSWnXDww3rLqaQniVGtGduRwwkVY8N8fhKrg0v Wz2TPeEarKoWcte+PJa968bkSy/U4O0b3l8vtmlhTmBZ8CFdXrFJZkMkTqY0pVhU 6FW7QDo4kZBv0UgXiT/hzv37mNoYszzVx8ZdTDGTUixY6VQ6cwmw6dQ96gbNRXif yQRwPD6bxUjZpRJJ0iKP0rS8pSP6RM+r//enHznixbVBLiaew+fWA/CVq4NkQYt1 ORQGbAouzCaSREMQNdr0itbOS5UNGgrYGRbEUBjD0x7fACitylgkPOyN86PD3/xt AeAsPTi08eZmxYbgFkwlUbjxLQ4NgniudkHacIw0kmvDTx5dvtiyD6X2HOgiMln1 qeW3G4IN3EAGQ5RtTMvsPSYzK4wlASnadvqQebfN5RQutSzkYgISqu9SgZ6dUs9F NfznXemc22I= =A65L -----END PGP SIGNATURE-----