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CVE-2017-15908

Status Candidate

Overview

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dns_packet_read_type_window() function of the 'systemd-resolved' service and cause a DoS of the affected service.

Related Files

Ubuntu Security Notice USN-3558-1
Posted Feb 6, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3558-1 - Karim Hossen and Thomas Imbert and Nelson William Gamazo Sanchez independently discovered that systemd-resolved incorrectly handled certain DNS responses. A remote attacker could possibly use this issue to cause systemd to temporarily stop responding, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. It was discovered that systemd incorrectly handled automounted volumes. A local attacker could possibly use this issue to cause applications to hang, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, local
systems | linux, ubuntu
advisories | CVE-2017-15908, CVE-2018-1049
MD5 | 7581b4ef340da5d924ce969867315c2b
Ubuntu Security Notice USN-3466-1
Posted Oct 26, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3466-1 - Karim Hossen & Thomas Imbert discovered that systemd-resolved incorrectly handled certain DNS responses. A remote attacker could possibly use this issue to cause systemd to temporarily stop responding, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2017-15908
MD5 | 51f29b489abcb6ab7c970b66b82685d0
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