{"id":"CVE-2021-45941","aliases":["BIT-bpftool-2021-45941","DEBIAN-CVE-2021-45941","EUVD-2021-32650","GHSA-mjhv-hh5f-w838"],"status":"published","title":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called...","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01211,"percentile":0.68674,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2021-12-31T23:57:14Z","modified":"2026-10-24T10:31:06Z","fixes":[{"ecosystem":"Debian:12","package":"libbpf","fixed_in":["0.7.0-2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libbpf","fixed_in":["0.7.0-2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libbpf","fixed_in":["0.7.0-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"bpftool","ranges":[{"type":"SEMVER","events":[{"introduced":"0.6.0"},{"last_affected":"0.6.0"},{"introduced":"0.6.1"},{"last_affected":"0.6.1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"libbpf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.0-2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libbpf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.0-2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libbpf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.0-2"}]}]}],"products":[{"vendor":"libbpf_project","product":"libbpf"}],"references":[{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libbpf/OSV-2021-1576.yaml","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web","evidence"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40957","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45941"},{"url":"https://github.com/advisories/GHSA-mjhv-hh5f-w838"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-45941","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-45941","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2021-12-31T23:57:14Z","modified":"2024-08-04T04:54:31.09Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32650","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2021-12-31T23:57:14Z","modified":"2024-08-04T04:54:31Z","updated_at":"2026-11-03T03:08:25.222984Z"}],"ghsa":[{"id":"GHSA-mjhv-hh5f-w838","title":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called...","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2022-01-02T00:00:47Z","modified":"2023-02-03T05:03:39Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:24.247018Z"}],"nvd":[{"id":"CVE-2021-45941","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2022-01-01T01:15:08.99Z","modified":"2026-06-17T04:14:17.447Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:02.977492Z"}],"osv":[{"id":"CVE-2021-45941","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2022-01-01T01:15:08.99Z","modified":"2026-10-24T10:31:06.628477639Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:22.18434Z"},{"id":"DEBIAN-CVE-2021-45941","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2022-01-01T01:15:08.99Z","modified":"2026-10-23T18:04:17.562967946Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:35.799676Z"},{"id":"BIT-bpftool-2021-45941","description":"libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).","status":"published","published":"2024-07-01T11:09:54.505Z","modified":"2024-07-01T12:27:27.599107Z","updated_at":"2026-11-02T15:28:28.70813Z"}]}}