{"schemaVersion":3,"id":"MGASA-2018-0377","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated libx11 packages fix security vulnerabilities\n\nUpdated libx11 packages fix security vulnerabilities:\n\nAn issue was discovered in XListExtensions in ListExt.c in libX11 through\n1.6.5. A malicious server can send a reply in which the first string\noverflows, causing a variable to be set to NULL that will be freed later\non, leading to DoS (segmentation fault) (CVE-2018-14598).\n\nAn issue was discovered in libX11 through 1.6.5. The function\nXListExtensions in ListExt.c is vulnerable to an off-by-one error caused\nby malicious server responses, leading to DoS or possibly unspecified\nother impact (CVE-2018-14599).\n\nAn issue was discovered in libX11 through 1.6.5. The function\nXListExtensions in ListExt.c interprets a variable as signed instead of\nunsigned, resulting in an out-of-bounds write (of up to 128 bytes),\nleading to DoS or remote code execution (CVE-2018-14600).","dates":{"published":"2018-09-20T23:17:55.000Z","modified":"2026-04-16T06:24:20.776Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"libx11","name":"libx11","label":"libx11","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/libx11","purlType":"rpm","versions":[{"text":"< 1.6.5-1.1.mga6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.6.5-1.1.mga6","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2018-0377.html","label":"advisories.mageia.org/MGASA-2018-0377.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=23474","label":"bugs.mageia.org/show_bug.cgi?id=23474","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://openwall.com/lists/oss-security/2018/08/21/6","label":"openwall.com/lists/oss-security/2018/08/21/6","hostname":"openwall.com","tags":["WEB"]},{"url":"https://lists.opensuse.org/opensuse-updates/2018-08/msg00164.html","label":"lists.opensuse.org/opensuse-updates/2018-08/msg00164.html","hostname":"lists.opensuse.org","tags":["WEB"]},{"url":"https://usn.ubuntu.com/3758-1/","label":"usn.ubuntu.com/3758-1/","hostname":"usn.ubuntu.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2018-14598","CVE-2018-14599","CVE-2018-14600"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-09-20T23:17:55.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T06:24:20.776Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:14:25.400Z","stale":false,"partial":false}}