-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3764-1 security@xxxxxxxxxx https://www.debian.org/security/ Salvatore Bonaccorso January 13, 2017 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : pdns CVE ID : CVE-2016-2120 CVE-2016-7068 CVE-2016-7072 CVE-2016-7073 CVE-2016-7074 Multiple vulnerabilities have been discovered in pdns, an authoritative DNS server. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2016-2120 Mathieu Lafon discovered that pdns does not properly validate records in zones. An authorized user can take advantage of this flaw to crash server by inserting a specially crafted record in a zone under their control and then sending a DNS query for that record. CVE-2016-7068 Florian Heinz and Martin Kluge reported that pdns parses all records present in a query regardless of whether they are needed or even legitimate, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the pdns server, resulting in a partial denial of service if the system becomes overloaded. CVE-2016-7072 Mongo discovered that the webserver in pdns is susceptible to a denial-of-service vulnerability. A remote, unauthenticated attacker to cause a denial of service by opening a large number of f TCP connections to the web server. CVE-2016-7073 / CVE-2016-7074 Mongo discovered that pdns does not sufficiently validate TSIG signatures, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR. For the stable distribution (jessie), these problems have been fixed in version 3.4.1-4+deb8u7. For the unstable distribution (sid), these problems have been fixed in version 4.0.2-1. We recommend that you upgrade your pdns 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----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAlh5AipfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0THwxAAjFdoBCq5p62oxlyCWUoYo23+EMNd+UI1Xfml81tKeA4cRH7CX/52j+2d fNpPDUnVFGVEGXu7Q7r7oxgcX9y4WcvcZuxK8/qZ3NB19Mjid3E2pzqSyGHtRyz/ Hw/3xX6zx2LilwgsSsZtw/ShwtPoz10a61QUkBLvyvG/hEGL5g4bL4S+mOAIB0fG WcPByGhnIrIz8VHLezda6iX/ge6zCkSL8FBPPPoLmoZ71tkPf3Hbhv0mecsut3ec Hgdzn7G62FUltMcLBjhQdX+2ne8GvjvLg9YQ5SzHd8x6qIeA5Cj8Kj4Bc+zUJdl6 9NhVpPDU9pHAs1x8Wpws7RrqIAJ+E8ZpkHcCmkg2aN1nu5GlSNpEMuLwDwn/iCAf gUO0w8WRvAZQ4kAyZvS/NOYI33ViE6K3knlRtxMbl51lvTj5Hm8+LtE/rIXepR+A Fhu6OvlSSQAqaoV2bCwFGPDYyZS/4nWJPbmGP0HLj2V0hwKvdVtaJ0KhjGRMr7ms aBXYYCHsoGK0CXJTVpoA136wbjvRvqZmiKibtXP+bPgrH+nlltH8h0c02w3cfg5/ qgPRynW3zwMA8zGLDQDR8U0QQM5sWuvg+wpvPRKnuseQH/OpSi3ICdUiXsHzjnRY pA9AbBkiDlhaVD7uBAtgv6LTi1nUk8YelUIZaU7sFYC80Li6aIg= =rAHU -----END PGP SIGNATURE-----
