{"id":"USN-3834-1","summary":"perl vulnerabilities","details":"Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv.\nAn attacker could use this issue to cause Perl to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2018-18311)\n\nEiichi Tsukata discovered that Perl incorrectly handled certain regular\nexpressions. An attacker could use this issue to cause Perl to crash,\nresulting in a denial of service, or possibly execute arbitrary code. This\nissue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10.\n(CVE-2018-18312)\n\nEiichi Tsukata discovered that Perl incorrectly handled certain regular\nexpressions. An attacker could use this issue to cause Perl to crash,\nresulting in a denial of service. (CVE-2018-18313)\n\nJakub Wilk discovered that Perl incorrectly handled certain regular\nexpressions. An attacker could use this issue to cause Perl to crash,\nresulting in a denial of service. This issue only affected Ubuntu 16.04\nLTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. (CVE-2018-18314)\n","modified":"2026-02-10T04:41:27Z","published":"2018-12-03T17:36:00Z","related":["UBUNTU-CVE-2018-18311","UBUNTU-CVE-2018-18312","UBUNTU-CVE-2018-18313","UBUNTU-CVE-2018-18314"],"upstream":["CVE-2018-18311","CVE-2018-18312","CVE-2018-18313","CVE-2018-18314","UBUNTU-CVE-2018-18311","UBUNTU-CVE-2018-18312","UBUNTU-CVE-2018-18313","UBUNTU-CVE-2018-18314"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3834-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18311"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18312"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18313"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18314"}],"affected":[{"package":{"name":"perl","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/perl@5.18.2-2ubuntu1.7?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.2-2ubuntu1.7"}]}],"versions":["5.14.2-21build1","5.18.1-4","5.18.1-4build1","5.18.1-5","5.18.2-2","5.18.2-2ubuntu1","5.18.2-2ubuntu1.1","5.18.2-2ubuntu1.3","5.18.2-2ubuntu1.4","5.18.2-2ubuntu1.6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"libcgi-fast-perl"},{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"libperl-dev"},{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"libperl5.18"},{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"perl"},{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"perl-base"},{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"perl-debug"},{"binary_version":"5.18.2-2ubuntu1.7","binary_name":"perl-modules"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-18311","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2018-18313","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3834-1.json"}},{"package":{"name":"perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/perl@5.22.1-9ubuntu0.6?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.22.1-9ubuntu0.6"}]}],"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"],"ecosystem_specific":{"availability":"No subscription 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