{"id":"CVE-2018-18651","aliases":["EUVD-2018-10367","GHSA-7mwm-jwjx-gh7x","UBUNTU-CVE-2018-18651"],"status":"published","title":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to...","description":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.","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":0.00933,"percentile":0.60966,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-834"],"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-2018-18651"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/152005","tags":["Third Party Advisory"]},{"url":"https://github.com/advisories/GHSA-7mwm-jwjx-gh7x"},{"url":"https://ubuntu.com/security/CVE-2018-18651","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-18651","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-18651","description":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.","status":"published","published":"2018-10-25T13:00:00Z","modified":"2024-09-16T22:19:56.19Z","updated_at":"2026-11-02T14:35:11.799349Z"}],"euvd":[{"id":"EUVD-2018-10367","description":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.","status":"published","published":"2018-10-25T13:00:00Z","modified":"2024-09-16T22:19:56Z","updated_at":"2026-11-03T00:55:04.418269Z"}],"ghsa":[{"id":"GHSA-7mwm-jwjx-gh7x","title":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to...","description":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.","status":"published","published":"2022-05-13T01:50:45Z","modified":"2023-02-02T05:02:03Z","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-834"],"updated_at":"2026-11-02T14:51:20.253646Z"}],"nvd":[{"id":"CVE-2018-18651","description":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.","status":"published","published":"2018-10-25T13:29:00.347Z","modified":"2026-06-17T01:47:38.507Z","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-834"],"updated_at":"2026-11-02T14:04:46.409324Z"}],"osv":[{"id":"UBUNTU-CVE-2018-18651","description":"An issue was discovered in Xpdf 4.00. catalog-\u003egetNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.","status":"published","published":"2018-10-25T13:29:00Z","modified":"2026-10-17T12:55:23.873820506Z","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"}]}}