{"id":"CVE-2018-11697","aliases":["DEBIAN-CVE-2018-11697","EUVD-2018-3716","GHSA-7mp7-9qpg-63p9","UBUNTU-CVE-2018-11697","USN-4837-1"],"status":"published","title":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was...","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01565,"percentile":0.75477,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2018-06-04T06:00:00Z","modified":"2026-10-24T10:47:36Z","fixes":[{"ecosystem":"Debian:12","package":"libsass","fixed_in":["3.6.3-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libsass","fixed_in":["3.6.3-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libsass","fixed_in":["3.6.3-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libsass","fixed_in":["3.4.8-1ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.3-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.3-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.3-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.8-1ubuntu0.1~esm1"}]}],"versions":["3.4.3-1","3.4.6-1","3.4.8-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.8-1ubuntu0.1~esm1"}]}],"versions":["3.4.3-1","3.4.6-1","3.4.8-1"],"bundled":13}],"products":[{"vendor":"sass-lang","product":"libsass"}],"references":[{"url":"https://github.com/sass/libsass/issues/2656","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-11697"},{"url":"https://github.com/advisories/GHSA-7mp7-9qpg-63p9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-11697","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-11697","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4837-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-11697","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11499","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11693","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11695","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11696","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11698","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-19797","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-19827","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-19839","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20190","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-6283","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-6284","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-6286","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-11697","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2018-06-04T06:00:00Z","modified":"2024-08-05T08:17:08.987Z","updated_at":"2026-11-02T14:35:09.139955Z"}],"euvd":[{"id":"EUVD-2018-3716","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2018-06-04T06:00:00Z","modified":"2024-08-05T08:17:08Z","updated_at":"2026-11-03T02:39:54.565302Z"}],"ghsa":[{"id":"GHSA-7mp7-9qpg-63p9","title":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was...","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2022-05-14T01:22:53Z","modified":"2023-02-02T05:03:27Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:51:38.861054Z"}],"nvd":[{"id":"CVE-2018-11697","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2018-06-04T06:29:00.887Z","modified":"2026-06-17T01:36:23.343Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:04:28.483469Z"}],"osv":[{"id":"CVE-2018-11697","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2018-06-04T06:29:00.887Z","modified":"2026-10-24T10:47:36.942422488Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:07.934182Z"},{"id":"DEBIAN-CVE-2018-11697","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2018-06-04T06:29:00.887Z","modified":"2026-10-23T18:00:35.472693038Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:29.988046Z"},{"id":"UBUNTU-CVE-2018-11697","description":"An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.","status":"published","published":"2018-06-04T06:29:00Z","modified":"2026-04-22T11:42:06.173591Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:16.544091Z"},{"id":"USN-4837-1","title":"libsass vulnerabilities","description":"It was discovered that LibSass incorrectly handled certain specially crafted\nsass file. An attacker could possibly use this issue to cause a denial of\nservice or other unspecified impact.","status":"published","published":"2021-03-15T22:19:52Z","modified":"2026-04-27T16:03:38.309150864Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}