{"id":"UBUNTU-CVE-2017-11556","details":"There is a stack consumption vulnerability in the Parser::advanceToNextToken function in parser.cpp in LibSass 3.4.5. A crafted input may lead to remote denial of service.","modified":"2026-04-22T11:57:42.477447Z","published":"2017-07-23T03:29:00Z","upstream":["CVE-2017-11556"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-11556"},{"type":"REPORT","url":"https://github.com/sass/libsass/issues/2447"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-11556"}],"affected":[{"package":{"name":"libsass","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libsass@3.3.4-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.5-1","3.2.5-2","3.3.2-1","3.3.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsass0","binary_version":"3.3.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11556.json"}},{"package":{"name":"libsass","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libsass@3.4.8-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.3-1","3.4.6-1","3.4.8-1","3.4.8-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsass0","binary_version":"3.4.8-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11556.json"}},{"package":{"name":"libsass","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libsass@3.6.3-1ubuntu1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.5-4","3.6.3-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsass1","binary_version":"3.6.3-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11556.json"}},{"package":{"name":"libsass","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libsass@3.6.5-1ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.5-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsass1","binary_version":"3.6.5-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11556.json"}},{"package":{"name":"libsass","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libsass@3.6.5+20231221-3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.5+20220909-1ubuntu1","3.6.5+20231221-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libsass1","binary_version":"3.6.5+20231221-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11556.json"}}],"schema_version":"1.7.5","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"}]}