{"id":"UBUNTU-CVE-2020-22283","details":"A buffer overflow vulnerability in the icmp6_send_response_with_addrs_and_netif() function of Free Software Foundation lwIP version git head allows attackers to access sensitive information via a crafted ICMPv6 packet.","modified":"2026-05-20T16:04:15.690666055Z","published":"2021-07-22T20:15:00Z","upstream":["CVE-2020-22283"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-22283"},{"type":"REPORT","url":"https://savannah.nongnu.org/bugs/index.php?58553"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-22283"}],"affected":[{"package":{"name":"lwip","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/lwip?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2-3","2.1.2-5.1","2.1.2+dfsg1-1","2.1.2+dfsg1-4"],"ecosystem_specific":{"binaries":[{"binary_name":"liblwip0","binary_version":"2.1.2+dfsg1-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22283.json"}},{"package":{"name":"lwip","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/lwip?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2+dfsg1-8","2.1.2+dfsg1-9","2.1.3+dfsg1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"liblwip0","binary_version":"2.1.3+dfsg1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22283.json"}},{"package":{"name":"lwip","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/lwip?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.3+dfsg1-2","2.1.3+dfsg1-4","2.2.0+dfsg1-2","2.2.0+dfsg1-3","2.2.0+dfsg1-4","2.2.0+dfsg1-5","2.2.0+dfsg1-6","2.2.0+dfsg1-6.1","2.2.0+dfsg1-6.1build1","2.2.0+dfsg1-6.1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"liblwip0t64","binary_version":"2.2.0+dfsg1-6.1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22283.json"}},{"package":{"name":"lwip","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/lwip?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1+dfsg1-1","2.2.1+dfsg1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"liblwip0t64","binary_version":"2.2.1+dfsg1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22283.json"}},{"package":{"name":"lwip","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/lwip?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1+dfsg1-2","2.2.1+dfsg1-3","2.2.1+dfsg1-4"],"ecosystem_specific":{"binaries":[{"binary_name":"liblwip0t64","binary_version":"2.2.1+dfsg1-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-22283.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}