{"id":"UBUNTU-CVE-2018-20103","details":"An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion.","modified":"2026-02-04T04:01:24.246377Z","published":"2018-12-12T00:00:00Z","related":["USN-3858-1"],"upstream":["CVE-2018-20103"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20103"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3858-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-20103"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/haproxy@1.8.8-1ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.8-1ubuntu0.3"}]}],"versions":["1.7.9-1ubuntu1","1.7.9-1ubuntu2","1.8.4-1","1.8.7-1","1.8.8-1","1.8.8-1ubuntu0.1","1.8.8-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.8-1ubuntu0.3","binary_name":"haproxy"},{"binary_version":"1.8.8-1ubuntu0.3","binary_name":"vim-haproxy"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20103.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}