{"id":"CVE-2019-9536","aliases":["EUVD-2019-18908","GHSA-c9m5-g5w9-9jfx"],"status":"published","title":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate...","description":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate memory, aka 'alloc8'. An attacker with physical access to the device can install arbitrary firmware.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00486,"percentile":0.42128,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-755"],"published":"2019-11-22T17:41:08Z","modified":"2026-06-17T02:43:54Z","products":[{"vendor":"apple","product":"iphone"},{"vendor":"apple","product":"iphone_3gs"}],"references":[{"url":"https://github.com/axi0mX/ipwndfu/blob/master/alloc8.py","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/axi0mX/alloc8","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9536"},{"url":"https://github.com/advisories/GHSA-c9m5-g5w9-9jfx"}],"sources":{"cve":[{"id":"CVE-2019-9536","description":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate memory, aka 'alloc8'. An attacker with physical access to the device can install arbitrary firmware.","status":"published","published":"2019-11-22T17:41:08Z","modified":"2024-08-04T21:54:44.397Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:20:20.081405Z"}],"euvd":[{"id":"EUVD-2019-18908","description":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate memory, aka 'alloc8'. An attacker with physical access to the device can install arbitrary firmware.","status":"published","published":"2019-11-22T17:41:08Z","modified":"2024-08-04T21:54:44Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T03:06:38.242317Z"}],"ghsa":[{"id":"GHSA-c9m5-g5w9-9jfx","title":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate...","description":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate memory, aka 'alloc8'. An attacker with physical access to the device can install arbitrary firmware.","status":"published","published":"2022-05-24T17:01:50Z","modified":"2023-01-28T05:08:22Z","cwes":["CWE-269"],"updated_at":"2026-11-02T14:44:36.910779Z"}],"nvd":[{"id":"CVE-2019-9536","description":"Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate memory, aka 'alloc8'. An attacker with physical access to the device can install arbitrary firmware.","status":"published","published":"2019-11-22T18:15:11.17Z","modified":"2026-06-17T02:43:54.74Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:05:37.024431Z"}]}}