{"id":"CVE-2020-8859","aliases":["DEBIAN-CVE-2020-8859","DLA-3014-1","EUVD-2020-29701","GHSA-gxx3-g5rx-565f","UBUNTU-CVE-2020-8859"],"status":"published","title":"This vulnerability allows remote attackers to create a denial-of-service condition on affected...","description":"This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.03573,"percentile":0.89467,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2020-03-23T20:25:22Z","modified":"2026-06-17T03:27:04Z","fixes":[{"ecosystem":"Debian:9","package":"elog","fixed_in":["3.1.2-1-1+deb9u1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:9","package":"elog","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-1-1+deb9u1"}]}],"versions":["3.1.2-1-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"elog","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.0-2-1","3.1.1-1-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"elog","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.3-1-1","3.1.3-1-1build1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"elog","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.3-1-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"elog","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.3-1-1build1","3.1.3-1-1build2"]}],"products":[{"vendor":"elog","product":"electronic logbook"},{"vendor":"psi","product":"electronic_logbook"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-20-252/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry","report"]},{"url":"https://elog.psi.ch/elogs/Forum/69114","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8859"},{"url":"https://github.com/advisories/GHSA-gxx3-g5rx-565f"},{"url":"https://ubuntu.com/security/CVE-2020-8859","tags":["report"]},{"url":"https://bitbucket.org/ritt/elog/commits/033e292301fa569738b20768b8d1f1d7d0bc1ca7","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-8859","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-8859","description":"This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.","status":"published","published":"2020-03-23T20:25:22Z","modified":"2024-08-04T10:12:10.993Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29701","description":"This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.","status":"published","published":"2020-03-23T20:25:22Z","modified":"2024-08-04T10:12:10Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T03:07:56.155078Z"}],"ghsa":[{"id":"GHSA-gxx3-g5rx-565f","title":"This vulnerability allows remote attackers to create a denial-of-service condition on affected...","description":"This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.","status":"published","published":"2022-05-24T17:12:16Z","modified":"2023-01-29T05:02:09Z","updated_at":"2026-11-02T14:45:00.10333Z"}],"nvd":[{"id":"CVE-2020-8859","description":"This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.","status":"published","published":"2020-03-23T21:15:12.283Z","modified":"2026-06-17T03:27:04.91Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:05:56.580228Z"}],"osv":[{"id":"UBUNTU-CVE-2020-8859","description":"This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.","status":"published","published":"2020-03-23T21:15:00Z","modified":"2025-10-24T04:48:20Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.728622Z"},{"id":"DLA-3014-1","title":"elog - security update","status":"published","published":"2022-05-18T00:00:00Z","modified":"2026-03-09T01:23:25.64685Z","updated_at":"2026-11-02T15:46:11.189256Z"}]}}