{"id":"CVE-2018-18650","aliases":["EUVD-2018-10366","GHSA-6h37-4rh8-55jq","UBUNTU-CVE-2018-18650"],"status":"published","title":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch...","description":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00924,"percentile":0.60672,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2018-10-25T13:00:00Z","modified":"2026-10-17T12:55:23Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.1.4-2.1","7.1.8-1","7.1.10-1","7.1.10-1.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.7-2","7.2.7-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.9-1","7.2.13-2","7.2.13-2build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.23+dfsg1-2","7.2.24+dfsg1-1","7.2.24+dfsg1-1build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.27+dfsg1-2","7.2.28-2","7.2.28-2.1build2","7.2.28-2.1build3","7.2.28-2.1build4"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.30-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.30-1build2","7.2.30-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"ipe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.2.30-1build1","7.2.30-1build2"]}],"products":[{"vendor":"xpdfreader","product":"xpdf"}],"references":[{"url":"https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41219\u0026p=41747#p41747","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-18650"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/152006","tags":["Third Party Advisory"]},{"url":"https://github.com/advisories/GHSA-6h37-4rh8-55jq"},{"url":"https://ubuntu.com/security/CVE-2018-18650","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-18650","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-18650","description":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.","status":"published","published":"2018-10-25T13:00:00Z","modified":"2024-09-17T04:09:01.509Z","updated_at":"2026-11-02T14:35:11.799349Z"}],"euvd":[{"id":"EUVD-2018-10366","description":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.","status":"published","published":"2018-10-25T13:00:00Z","modified":"2024-09-17T04:09:01Z","updated_at":"2026-11-03T00:28:25.709658Z"}],"ghsa":[{"id":"GHSA-6h37-4rh8-55jq","title":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch...","description":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.","status":"published","published":"2022-05-14T01:52:31Z","modified":"2023-02-02T05:04:40Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:51:55.949216Z"}],"nvd":[{"id":"CVE-2018-18650","description":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.","status":"published","published":"2018-10-25T13:29:00.237Z","modified":"2026-06-17T01:47:38.38Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:04:46.409324Z"}],"osv":[{"id":"UBUNTU-CVE-2018-18650","description":"An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.","status":"published","published":"2018-10-25T13:29:00Z","modified":"2026-10-17T12:55:23.948869702Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:17.496046Z"}]}}