{"id":"USN-6530-2","summary":"haproxy vulnerability","details":"Seth Manesse and Paul Plasil discovered that HAProxy incorrectly handled \nURI components containing the hash character (#). A remote attacker could \npossibly use this issue to obtain sensitive information, or to bypass \ncertain path_end rules.\n","modified":"2026-02-10T04:43:26Z","published":"2024-07-23T16:55:58Z","related":["UBUNTU-CVE-2023-45539"],"upstream":["CVE-2023-45539","UBUNTU-CVE-2023-45539"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6530-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-45539"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/haproxy@1.6.3-1ubuntu0.3+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.3-1ubuntu0.3+esm1"}]}],"versions":["1.5.14-1","1.5.15-1","1.6.2-1","1.6.2-2","1.6.2-2ubuntu1","1.6.2-2ubuntu3","1.6.3-1","1.6.3-1ubuntu0.1","1.6.3-1ubuntu0.2","1.6.3-1ubuntu0.3"],"ecosystem_specific":{"binaries":[{"binary_name":"haproxy","binary_version":"1.6.3-1ubuntu0.3+esm1"},{"binary_name":"vim-haproxy","binary_version":"1.6.3-1ubuntu0.3+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6530-2.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2023-45539","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"haproxy","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/haproxy@1.8.8-1ubuntu0.13+esm2?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.8-1ubuntu0.13+esm2"}]}],"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","1.8.8-1ubuntu0.3","1.8.8-1ubuntu0.4","1.8.8-1ubuntu0.6","1.8.8-1ubuntu0.7","1.8.8-1ubuntu0.8","1.8.8-1ubuntu0.9","1.8.8-1ubuntu0.10","1.8.8-1ubuntu0.11","1.8.8-1ubuntu0.13"],"ecosystem_specific":{"binaries":[{"binary_name":"haproxy","binary_version":"1.8.8-1ubuntu0.13+esm2"},{"binary_name":"vim-haproxy","binary_version":"1.8.8-1ubuntu0.13+esm2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6530-2.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2023-45539","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}