{"id":"USN-4759-1","summary":"glib2.0 vulnerabilities","details":"Krzesimir Nowak discovered that GLib incorrectly handled certain large\nbuffers. A remote attacker could use this issue to cause applications\nlinked to GLib to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2021-27218)\n\nKevin Backhouse discovered that GLib incorrectly handled certain memory\nallocations. A remote attacker could use this issue to cause applications\nlinked to GLib to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2021-27219)\n","modified":"2026-04-27T15:48:31.710439Z","published":"2021-03-08T18:15:59Z","related":["UBUNTU-CVE-2021-27218","UBUNTU-CVE-2021-27219"],"upstream":["CVE-2021-27218","CVE-2021-27219","UBUNTU-CVE-2021-27218","UBUNTU-CVE-2021-27219"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4759-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-27218"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-27219"}],"affected":[{"package":{"name":"glib2.0","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/glib2.0@2.48.2-0ubuntu4.7?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.48.2-0ubuntu4.7"}]}],"versions":["2.46.1-1","2.46.1-2","2.47.1-1","2.47.3-3","2.47.4-1","2.47.5-1","2.47.6-1","2.48.0-1ubuntu3","2.48.0-1ubuntu4","2.48.1-1~ubuntu16.04.1","2.48.2-0ubuntu1","2.48.2-0ubuntu3","2.48.2-0ubuntu4","2.48.2-0ubuntu4.1","2.48.2-0ubuntu4.2","2.48.2-0ubuntu4.3","2.48.2-0ubuntu4.4","2.48.2-0ubuntu4.5","2.48.2-0ubuntu4.6"],"ecosystem_specific":{"binaries":[{"binary_name":"libglib2.0-0","binary_version":"2.48.2-0ubuntu4.7"},{"binary_name":"libglib2.0-0-refdbg","binary_version":"2.48.2-0ubuntu4.7"},{"binary_name":"libglib2.0-bin","binary_version":"2.48.2-0ubuntu4.7"},{"binary_name":"libglib2.0-data","binary_version":"2.48.2-0ubuntu4.7"},{"binary_name":"libglib2.0-tests","binary_version":"2.48.2-0ubuntu4.7"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4759-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-27218"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-27219"}],"ecosystem":"Ubuntu:16.04:LTS"}}},{"package":{"name":"glib2.0","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/glib2.0@2.56.4-0ubuntu0.18.04.7?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.56.4-0ubuntu0.18.04.7"}]}],"versions":["2.54.1-1ubuntu1","2.55.2-2ubuntu1","2.56.0-2ubuntu1","2.56.0-4ubuntu1","2.56.1-2ubuntu1","2.56.2-0ubuntu0.18.04.1","2.56.2-0ubuntu0.18.04.2","2.56.3-0ubuntu0.18.04.1","2.56.4-0ubuntu0.18.04.2","2.56.4-0ubuntu0.18.04.3","2.56.4-0ubuntu0.18.04.4","2.56.4-0ubuntu0.18.04.5","2.56.4-0ubuntu0.18.04.6"],"ecosystem_specific":{"binaries":[{"binary_name":"libglib2.0-0","binary_version":"2.56.4-0ubuntu0.18.04.7"},{"binary_name":"libglib2.0-bin","binary_version":"2.56.4-0ubuntu0.18.04.7"},{"binary_name":"libglib2.0-data","binary_version":"2.56.4-0ubuntu0.18.04.7"},{"binary_name":"libglib2.0-dev-bin","binary_version":"2.56.4-0ubuntu0.18.04.7"},{"binary_name":"libglib2.0-tests","binary_version":"2.56.4-0ubuntu0.18.04.7"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4759-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-27218"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-27219"}],"ecosystem":"Ubuntu:18.04:LTS"}}},{"package":{"name":"glib2.0","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/glib2.0@2.64.6-1~ubuntu20.04.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.64.6-1~ubuntu20.04.2"}]}],"versions":["2.62.1-1","2.63.1-2","2.63.1-2ubuntu1","2.63.3-1","2.63.3-3","2.63.5-2","2.64.0-1","2.64.1-1","2.64.2-1~fakesync1","2.64.3-1~ubuntu20.04.1","2.64.6-1~ubuntu20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libglib2.0-0","binary_version":"2.64.6-1~ubuntu20.04.2"},{"binary_name":"libglib2.0-bin","binary_version":"2.64.6-1~ubuntu20.04.2"},{"binary_name":"libglib2.0-data","binary_version":"2.64.6-1~ubuntu20.04.2"},{"binary_name":"libglib2.0-dev-bin","binary_version":"2.64.6-1~ubuntu20.04.2"},{"binary_name":"libglib2.0-tests","binary_version":"2.64.6-1~ubuntu20.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4759-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-27218"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-27219"}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.5"}