{"id":"CVE-2020-27545","aliases":["AZL-33327","AZL-42093","DEBIAN-CVE-2020-27545","EUVD-2020-20053","GHSA-9mh7-9qxg-6fpq","OESA-2022-1819","OESA-2022-1820","SUSE-SU-2023:2784-1","UBUNTU-CVE-2020-27545"],"status":"published","title":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer...","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00823,"percentile":0.5777,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-763"],"published":"2022-08-11T11:05:05Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Azure 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Linux:2","package":"libdwarf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.0"}]}]},{"source":"osv","ecosystem":"Azure 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SP4","package":"libdwarf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20161124-150000.3.6.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP5","package":"libdwarf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20161124-150000.3.6.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 15.4","package":"libdwarf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20161124-150000.3.6.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 15.5","package":"libdwarf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20161124-150000.3.6.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"dwarfutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20120410-2","20120410-2+deb7u2build0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"dwarfutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20170709-1","20180129-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"dwarfutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20180809-1","20190529-1","20191104-1","20191104-1ubuntu1","20200114-1"]}],"products":[{"vendor":"libdwarf_project","product":"libdwarf"}],"references":[{"url":"https://sourceforge.net/projects/libdwarf/","tags":["x_transferred","Product","web"]},{"url":"https://github.com/davea42/libdwarf-code/commit/95f634808c01f1c61bbec56ed2395af997f397ea","tags":["x_transferred","Patch","fix","report"]},{"url":"https://www.prevanders.net/dwarfbug.html#DW202010-001","tags":["x_transferred","Third Party Advisory","advisory","report"]},{"url":"http://web.archive.org/web/20190601140703/https://sourceforge.net/projects/libdwarf/","tags":["x_transferred","Product","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2025694","tags":["x_transferred","Issue Tracking","Permissions Required","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27545","tags":["web","advisory"]},{"url":"https://sourceforge.net/projects/libdwarf"},{"url":"http://web.archive.org/web/20190601140703/https://sourceforge.net/projects/libdwarf"},{"url":"https://github.com/advisories/GHSA-9mh7-9qxg-6fpq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-27545","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1819","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28163","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1820","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20232784-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1193102","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27545","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2020-27545","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-27545","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-27545","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-15T00:00:00Z","modified":"2025-02-06T16:23:01.097Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20053","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-15T00:00:00Z","modified":"2025-02-06T16:23:01Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:03.312509Z"}],"ghsa":[{"id":"GHSA-9mh7-9qxg-6fpq","title":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer...","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-16T00:30:25Z","modified":"2024-04-04T03:30:14Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T14:56:15.423381Z"}],"nvd":[{"id":"CVE-2020-27545","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-16T00:15:07.273Z","modified":"2026-06-17T03:09:17.753Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T14:06:47.910346Z"}],"osv":[{"id":"AZL-33327","title":"CVE-2020-27545 affecting package libdwarf for versions less than 0.9.0","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-16T00:15:07Z","modified":"2026-04-21T04:26:47.530849Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:03.46006Z"},{"id":"AZL-42093","title":"CVE-2020-27545 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out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-16T00:15:07.273Z","modified":"2026-10-26T12:02:41.918069567Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:33.729655Z"},{"id":"OESA-2022-1819","title":"libdwarf security update","description":"Libdwarf is a library of functions to provide read/write DWARF debugging records.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in libdwarf. A possible memory leak allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-27545)\r\n\r\nA flaw was found in libdwarf. A possible null pointer dereference vulnerability allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-28163)","status":"published","published":"2022-08-11T11:05:05Z","modified":"2026-08-18T01:16:50.813755198Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:39.528805Z"},{"id":"OESA-2022-1820","title":"libdwarf security update","description":"Libdwarf is a library of functions to provide read/write DWARF debugging records.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in libdwarf. A possible memory leak allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-27545)\n\nA flaw was found in libdwarf. A possible null pointer dereference vulnerability allows an attacker to input a specially crafted file, leading to a crash. The highest threat from this vulnerability is to system availability.(CVE-2020-28163)","status":"published","published":"2022-08-11T11:05:05Z","modified":"2026-08-18T01:16:12.801932897Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:39.528805Z"},{"id":"UBUNTU-CVE-2020-27545","description":"libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.","status":"published","published":"2023-04-16T00:15:00Z","modified":"2026-04-22T12:37:54.467865Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:24.541803Z"},{"id":"SUSE-SU-2023:2784-1","title":"Security update for libdwarf","description":"This update for libdwarf fixes the following issues:\n\n  - CVE-2020-27545: Fixed corrupted line table being able to crash calling app (bsc#1193102).\n","status":"published","published":"2023-07-05T08:06:38Z","modified":"2026-02-04T03:13:38.720449Z","updated_at":"2026-11-02T15:53:53.019382Z"}]}}