-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3629-1 security@xxxxxxxxxx https://www.debian.org/security/ Moritz Muehlenhoff July 25, 2016 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : ntp CVE ID : CVE-2015-7974 CVE-2015-7977 CVE-2015-7978 CVE-2015-7979 CVE-2015-8138 CVE-2015-8158 CVE-2016-1547 CVE-2016-1548 CVE-2016-1550 CVE-2016-2516 CVE-2016-2518 Several vulnerabilities were discovered in the Network Time Protocol daemon and utility programs: CVE-2015-7974 Matt Street discovered that insufficient key validation allows impersonation attacks between authenticated peers. CVE-2015-7977 / CVE-2015-7978 Stephen Gray discovered that a NULL pointer dereference and a buffer overflow in the handling of "ntpdc reslist" commands may result in denial of service. CVE-2015-7979 Aanchal Malhotra discovered that if NTP is configured for broadcast mode, an attacker can send malformed authentication packets which break associations with the server for other broadcast clients. CVE-2015-8138 Matthew van Gundy and Jonathan Gardner discovered that missing validation of origin timestamps in ntpd clients may result in denial of service. CVE-2015-8158 Jonathan Gardner discovered that missing input sanitising in ntpq may result in denial of service. CVE-2016-1547 Stephen Gray and Matthew van Gundy discovered that incorrect handling of crypto NAK packets my result in denial of service. CVE-2016-1548 Jonathan Gardner and Miroslav Lichvar discovered that ntpd clients could be forced to change from basic client/server mode to interleaved symmetric mode, preventing time synchronisation. CVE-2016-1550 Matthew van Gundy, Stephen Gray and Loganaden Velvindron discovered that timing leaks in the the packet authentication code could result in recovery of a message digest. CVE-2016-2516 Yihan Lian discovered that duplicate IPs on "unconfig" directives will trigger an assert. CVE-2016-2518 Yihan Lian discovered that an OOB memory access could potentially crash ntpd. For the stable distribution (jessie), these problems have been fixed in version 1:4.2.6.p5+dfsg-7+deb8u2. For the testing distribution (stretch), these problems have been fixed in version 1:4.2.8p7+dfsg-1. For the unstable distribution (sid), these problems have been fixed in version 1:4.2.8p7+dfsg-1. We recommend that you upgrade your ntp packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJXloDyAAoJEBDCk7bDfE42sEIQAITxUHR3soJpA10Z0ermNvj9 lIk50hAgupkjg7Jfvy6GoIl3vSwaW3zteLm7PGXAQVMkN4Uu7yuC/3UKia1W4T4M Y4JqCceSpGI8Frse/hNe65q/wo7a5nNmd3zzeX477PcxvSttyQ0W5PbNofDXOWWV C9C2NmQoWKXQoaJ7VeSUtqFPCijduxzME/NIwkZTgnfHqXHLDxkOFcogfbr/xxh3 QCnocTQBMUniVGVjIkmZJvAXYxCONfWGy4Mi8XP6PmmDiYnda6cKpYR9cQq8Rrn2 jyhH/S16k7qAboNT25rJQhD7evL+G+/lQKzwTMMif1F6UZEdCdiEcMaGxBt/be2t WR+xiGg/xS/sSO4idz4+VzAhBTrKgkAiySHnuCIW43mSP4EQ19crEwodReEGo5ya UyRJzX1ocYyoanhn4GI/zLutIOJHSuo/RODTVNjTtFpR40i0RfLzI0BkbAw0MOrj gy29tneLfgzPjYMUKIpE7QKgtkEDs2PJG3tIptdR43xwRz1eQoRzNt4Iuv3174/M T0JU5/zWYcvCPLkby3YAqOZkqi+W6VoFKyTFKD6WTKujknOTkjcRGr8bqSBuV+EV /cPY7ksVajzOIP0Vh6zV2OjWqIEb1agE76VaYcKCgDpRAqvRMA5YRYt9zFV0VSLi E8XbyUv2ljEkPXFAhg6n =vLJU -----END PGP SIGNATURE-----
