{"id":"CVE-2020-4068","aliases":["EUVD-2020-25320","GHSA-qh2w-vjxg-mjcg"],"status":"published","title":"Heap-based Buffer Overflow in APNSwift","description":"In APNSwift 1.0.0, calling APNSwiftSigner.sign(digest:) is likely to result in a heap buffer overflow. This has been fixed in 1.0.1.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01316,"percentile":0.70984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2020-06-22T15:30:17Z","modified":"2026-10-20T10:54:22Z","products":[{"vendor":"apnswift_project","product":"apnswift"},{"vendor":"kylebrowning","product":"apnswift"}],"references":[{"url":"https://github.com/kylebrowning/APNSwift/security/advisories/GHSA-qh2w-vjxg-mjcg","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://github.com/kylebrowning/APNSwift/issues/31","tags":["x_refsource_MISC","x_transferred","Issue Tracking","report"]},{"url":"https://github.com/kylebrowning/APNSwift/pull/32","tags":["x_refsource_MISC","x_transferred","Issue Tracking","report"]},{"url":"https://github.com/kylebrowning/APNSwift/commit/97fa7f69dcdd89168fff84e0ba8f999881ee3d3f","tags":["x_refsource_MISC","x_transferred","Patch","fix"]}],"sources":{"cve":[{"id":"CVE-2020-4068","title":"Heap-based Buffer Overflow in APNSwift","description":"In APNSwift 1.0.0, calling APNSwiftSigner.sign(digest:) is likely to result in a heap buffer overflow. This has been fixed in 1.0.1.","status":"published","published":"2020-06-22T15:30:17Z","modified":"2024-08-04T07:52:20.911Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2020-25320","description":"In APNSwift 1.0.0, calling APNSwiftSigner.sign(digest:) is likely to result in a heap buffer overflow. This has been fixed in 1.0.1.","status":"published","published":"2020-06-22T15:30:17Z","modified":"2024-08-04T07:52:20Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T03:08:07.872525Z"}],"nvd":[{"id":"CVE-2020-4068","description":"In APNSwift 1.0.0, calling APNSwiftSigner.sign(digest:) is likely to result in a heap buffer overflow. This has been fixed in 1.0.1.","status":"published","published":"2020-06-22T16:15:11.87Z","modified":"2026-06-17T03:19:30.93Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:06:07.249892Z"}],"osv":[{"id":"CVE-2020-4068","description":"In APNSwift 1.0.0, calling APNSwiftSigner.sign(digest:) is likely to result in a heap buffer overflow. This has been fixed in 1.0.1.","status":"published","published":"2020-06-22T16:15:11.87Z","modified":"2026-10-20T10:54:22.541887339Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:16.936975Z"}]}}