{"id":"UBUNTU-CVE-2021-4070","details":"Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0.","modified":"2025-09-08T16:46:51Z","published":"2022-02-23T20:15:00Z","upstream":["CVE-2021-4070"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4070"},{"type":"REPORT","url":"https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877/"},{"type":"REPORT","url":"https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-4070"}],"affected":[{"package":{"name":"golang-v2ray-core","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-v2ray-core@4.34.0-5?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.34.0-1","4.34.0-5"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-v2ray-core-dev","binary_version":"4.34.0-5"},{"binary_name":"v2ray","binary_version":"4.34.0-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4070.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}