{"id":"USN-4602-1","summary":"perl vulnerabilities","details":"ManhND discovered that Perl incorrectly handled certain regular\nexpressions. In environments where untrusted regular expressions are\nevaluated, a remote attacker could possibly use this issue to cause Perl to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2020-10543)\n\nHugo van der Sanden and Slaven Rezic discovered that Perl incorrectly\nhandled certain regular expressions. In environments where untrusted\nregular expressions are evaluated, a remote attacker could possibly use\nthis issue to cause Perl to crash, resulting in a denial of service, or\npossibly execute arbitrary code. (CVE-2020-10878)\n\nSergey Aleynikov discovered that Perl incorrectly handled certain regular\nexpressions. In environments where untrusted regular expressions are\nevaluated, a remote attacker could possibly use this issue to cause Perl to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2020-12723)\n","modified":"2026-04-22T10:08:41.792979Z","published":"2020-10-26T11:11:53Z","related":["UBUNTU-CVE-2020-10543","UBUNTU-CVE-2020-10878","UBUNTU-CVE-2020-12723"],"upstream":["CVE-2020-10543","CVE-2020-10878","CVE-2020-12723","UBUNTU-CVE-2020-10543","UBUNTU-CVE-2020-10878","UBUNTU-CVE-2020-12723"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4602-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10543"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10878"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12723"}],"affected":[{"package":{"name":"perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/perl@5.22.1-9ubuntu0.9?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.22.1-9ubuntu0.9"}]}],"versions":["5.20.2-6","5.22.1-3","5.22.1-4","5.22.1-5","5.22.1-7","5.22.1-8","5.22.1-9","5.22.1-9ubuntu0.2","5.22.1-9ubuntu0.3","5.22.1-9ubuntu0.5","5.22.1-9ubuntu0.6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.22.1-9ubuntu0.9","binary_name":"libperl5.22"},{"binary_version":"5.22.1-9ubuntu0.9","binary_name":"perl"},{"binary_version":"5.22.1-9ubuntu0.9","binary_name":"perl-base"},{"binary_version":"5.22.1-9ubuntu0.9","binary_name":"perl-debug"},{"binary_version":"5.22.1-9ubuntu0.9","binary_name":"perl-modules-5.22"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4602-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2020-10543","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2020-10878","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2020-12723","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":"low"}]}]}}},{"package":{"name":"perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/perl@5.26.1-6ubuntu0.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.26.1-6ubuntu0.5"}]}],"versions":["5.26.0-8ubuntu1","5.26.1-2ubuntu1","5.26.1-3","5.26.1-4","5.26.1-4build1","5.26.1-5","5.26.1-6","5.26.1-6ubuntu0.1","5.26.1-6ubuntu0.2","5.26.1-6ubuntu0.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.26.1-6ubuntu0.5","binary_name":"libperl5.26"},{"binary_version":"5.26.1-6ubuntu0.5","binary_name":"perl"},{"binary_version":"5.26.1-6ubuntu0.5","binary_name":"perl-base"},{"binary_version":"5.26.1-6ubuntu0.5","binary_name":"perl-debug"},{"binary_version":"5.26.1-6ubuntu0.5","binary_name":"perl-modules-5.26"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4602-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-10543","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2020-10878","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2020-12723","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":"low"}]}]}}},{"package":{"name":"perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/perl@5.30.0-9ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.30.0-9ubuntu0.2"}]}],"versions":["5.28.1-6build1","5.30.0-7","5.30.0-9","5.30.0-9build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.30.0-9ubuntu0.2","binary_name":"libperl5.30"},{"binary_version":"5.30.0-9ubuntu0.2","binary_name":"perl"},{"binary_version":"5.30.0-9ubuntu0.2","binary_name":"perl-base"},{"binary_version":"5.30.0-9ubuntu0.2","binary_name":"perl-debug"},{"binary_version":"5.30.0-9ubuntu0.2","binary_name":"perl-modules-5.30"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4602-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-10543","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2020-10878","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2020-12723","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":"low"}]}]}}}],"schema_version":"1.7.5"}