{"id":"USN-4213-1","summary":"squid, squid3 vulnerabilities","details":"Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly\nhandled certain URN requests. A remote attacker could possibly use this\nissue to bypass access checks and access restricted servers. This issue was\nonly addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523)\n\nJeriko One discovered that Squid incorrectly handed URN responses. A remote\nattacker could use this issue to cause Squid to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2019-12526)\n\nAlex Rousskov discovered that Squid incorrectly handled certain strings. A\nremote attacker could possibly use this issue to cause Squid to crash,\nresulting in a denial of service. This issue only affected Ubuntu 19.04.\n(CVE-2019-12854)\n\nJeriko One and Kristoffer Danielsson discovered that Squid incorrectly\nhandled certain input. A remote attacker could use this issue to cause\nSquid to crash, resulting in a denial of service, or possibly execute\narbitrary code. This issue was only addressed in Ubuntu 19.04 and Ubuntu\n19.10. (CVE-2019-18676)\n\nKristoffer Danielsson discovered that Squid incorrectly handled certain\nmessages. This issue could result in traffic being redirected to origins\nit should not be delivered to. (CVE-2019-18677)\n\nRégis Leroy discovered that Squid incorrectly handled certain HTTP\nrequest headers. A remote attacker could use this to smuggle HTTP requests\nand corrupt caches with arbitrary content. (CVE-2019-18678)\n\nDavid Fifield discovered that Squid incorrectly handled HTTP Digest\nAuthentication. A remote attacker could possibly use this issue to obtain\npointer contents and bypass ASLR protections. (CVE-2019-18679)\n","modified":"2026-02-10T04:41:43Z","published":"2019-12-04T17:28:48Z","related":["UBUNTU-CVE-2019-12523","UBUNTU-CVE-2019-12526","UBUNTU-CVE-2019-18676","UBUNTU-CVE-2019-18677","UBUNTU-CVE-2019-18678","UBUNTU-CVE-2019-18679"],"upstream":["CVE-2019-12523","CVE-2019-12526","CVE-2019-18676","CVE-2019-18677","CVE-2019-18678","CVE-2019-18679","UBUNTU-CVE-2019-12523","UBUNTU-CVE-2019-12526","UBUNTU-CVE-2019-12854","UBUNTU-CVE-2019-18676","UBUNTU-CVE-2019-18677","UBUNTU-CVE-2019-18678","UBUNTU-CVE-2019-18679"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4213-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12523"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12526"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12854"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18676"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18677"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18678"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18679"}],"affected":[{"package":{"name":"squid3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.9?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.12-1ubuntu7.9"}]}],"versions":["3.3.8-1ubuntu16","3.3.8-1ubuntu17","3.5.12-1ubuntu6","3.5.12-1ubuntu7","3.5.12-1ubuntu7.1","3.5.12-1ubuntu7.2","3.5.12-1ubuntu7.3","3.5.12-1ubuntu7.4","3.5.12-1ubuntu7.5","3.5.12-1ubuntu7.6","3.5.12-1ubuntu7.7","3.5.12-1ubuntu7.8"],"ecosystem_specific":{"binaries":[{"binary_version":"3.5.12-1ubuntu7.9","binary_name":"squid"},{"binary_version":"3.5.12-1ubuntu7.9","binary_name":"squid-cgi"},{"binary_version":"3.5.12-1ubuntu7.9","binary_name":"squid-common"},{"binary_version":"3.5.12-1ubuntu7.9","binary_name":"squid-purge"},{"binary_version":"3.5.12-1ubuntu7.9","binary_name":"squid3"},{"binary_version":"3.5.12-1ubuntu7.9","binary_name":"squidclient"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4213-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2019-12526","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18677","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18678","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18679","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"squid3","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/squid3@3.5.27-1ubuntu1.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.27-1ubuntu1.4"}]}],"versions":["3.5.23-5ubuntu1","3.5.23-5ubuntu2","3.5.27-1ubuntu1","3.5.27-1ubuntu1.1","3.5.27-1ubuntu1.2","3.5.27-1ubuntu1.3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.5.27-1ubuntu1.4","binary_name":"squid"},{"binary_version":"3.5.27-1ubuntu1.4","binary_name":"squid-cgi"},{"binary_version":"3.5.27-1ubuntu1.4","binary_name":"squid-common"},{"binary_version":"3.5.27-1ubuntu1.4","binary_name":"squid-purge"},{"binary_version":"3.5.27-1ubuntu1.4","binary_name":"squid3"},{"binary_version":"3.5.27-1ubuntu1.4","binary_name":"squidclient"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4213-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2019-12526","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18677","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18678","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18679","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}