{"id":"CVE-2017-10687","aliases":["EUVD-2017-2334","GHSA-2qpq-rm7r-m2pp","UBUNTU-CVE-2017-10687"],"status":"published","title":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in...","description":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0197,"percentile":0.80539,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2017-06-29T23:00:00Z","modified":"2026-06-17T01:00:32Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.5-1","3.2.5-2","3.3.2-1","3.3.4-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libsass","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"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.5-4","3.6.3-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.5-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libsass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.5+20220909-1ubuntu1","3.6.5+20231221-3"]}],"products":[{"vendor":"libsass","product":"libsass"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1466411","tags":["x_refsource_MISC","x_transferred","Issue Tracking"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-10687"},{"url":"https://github.com/advisories/GHSA-2qpq-rm7r-m2pp"},{"url":"https://ubuntu.com/security/CVE-2017-10687","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-10687","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-10687","description":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.","status":"published","published":"2017-06-29T23:00:00Z","modified":"2024-09-16T16:13:14.742Z","updated_at":"2026-11-02T14:33:13.27226Z"}],"euvd":[{"id":"EUVD-2017-2334","description":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.","status":"published","published":"2017-06-29T23:00:00Z","modified":"2024-09-16T16:13:14Z","updated_at":"2026-11-03T00:55:53.971387Z"}],"ghsa":[{"id":"GHSA-2qpq-rm7r-m2pp","title":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in...","description":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.","status":"published","published":"2022-05-13T01:41:56Z","modified":"2023-02-02T05:00:42Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:51:01.29425Z"}],"nvd":[{"id":"CVE-2017-10687","description":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.","status":"published","published":"2017-06-29T23:29:00.317Z","modified":"2026-06-17T01:00:32.817Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:03:51.893212Z"}],"osv":[{"id":"UBUNTU-CVE-2017-10687","description":"In LibSass 3.4.5, there is a heap-based buffer over-read in the function json_mkstream() in sass_context.cpp. A crafted input will lead to a remote denial of service attack.","status":"published","published":"2017-06-29T23:29:00Z","modified":"2026-04-22T11:09:47.993921Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:13.729565Z"}]}}