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heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-28T18:47:32Z","modified":"2026-10-14T06:35:41.896Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:20:18.746972Z"}],"euvd":[{"id":"EUVD-2019-15026","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-28T18:47:32Z","modified":"2026-10-14T06:35:41Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:17.374818Z"}],"ghsa":[{"id":"GHSA-8xvc-p9x4-w7jm","title":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in...","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2022-05-24T16:46:47Z","modified":"2026-10-14T09:31:22Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T15:13:22.867821Z"}],"nvd":[{"id":"CVE-2019-5436","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-28T19:29:06.127Z","modified":"2026-10-14T07:16:54.61Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:05:14.729983Z"}],"osv":[{"id":"ALPINE-CVE-2019-5436","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-28T19:29:06.127Z","modified":"2026-11-03T06:32:17.844622031Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T07:17:57.723967Z"},{"id":"BELL-CVE-2019-5436","title":"CVE-2019-5436 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:05.799026Z","modified":"2026-01-26T09:47:19.943062Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:15.340685Z"},{"id":"CVE-2019-5436","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-28T19:29:06.127Z","modified":"2026-10-24T10:30:35.838819197Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:12.675558Z"},{"id":"DEBIAN-CVE-2019-5436","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-28T19:29:06.127Z","modified":"2026-10-15T07:47:38.934343043Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:32.221385Z"},{"id":"RHSA-2020:1020","title":"Red Hat Security Advisory: curl security and bug fix update","status":"published","published":"2024-09-16T02:24:30Z","modified":"2026-09-21T10:02:31Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:06.535721Z"},{"id":"RHSA-2020:1792","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T02:24:54Z","modified":"2026-09-21T10:02:35Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.072948Z"},{"id":"RHSA-2020:2505","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T02:25:02Z","modified":"2026-09-21T10:02:37Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.072948Z"},{"id":"UBUNTU-CVE-2019-5436","description":"A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.","status":"published","published":"2019-05-22T00:00:00Z","modified":"2026-04-27T09:10:06.599731Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:21.741399Z"},{"id":"CLSA-2026-1777877363","title":"curl: Fix of 2 CVEs","description":"- CVE-2019-5436: tftp: use the current blksize for recvfrom()\n- CVE-2016-8615: cookie: replace use of fgets() with custom version","status":"published","published":"2026-05-05T21:18:53Z","modified":"2026-10-21T10:47:52.68373709Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"CLSA-2026-1777878036","title":"curl: Fix of 2 CVEs","description":"- CVE-2019-5436: tftp: use the current blksize for recvfrom()\n- CVE-2016-8615: cookie: replace use of fgets() with custom version","status":"published","published":"2026-05-04T07:00:40Z","modified":"2026-10-21T10:48:12.216569454Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"CURL-CVE-2019-5436","title":"TFTP receive buffer overflow","description":"libcurl contains a heap buffer overflow in the function\n(`tftp_receive_packet()`) that receives data from a TFTP server. It calls\n`recvfrom()` with the default size for the buffer rather than with the size\nthat was used to allocate it. Thus, the content that might overwrite the heap\nmemory is entirely controlled by the server.\n\nThe flaw exists if the user selects to use a `blksize` of 504 or smaller\n(default is 512). The smaller size that is used, the larger the possible\noverflow becomes.\n\nUsers choosing a smaller size than default should be rare as the primary use\ncase for changing the size is to make it larger.\n\nIt is rare for users to use TFTP across the Internet. It is most commonly used\nwithin local networks.","status":"published","published":"2019-05-22T08:00:00Z","modified":"2026-10-25T01:05:09.025357537Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"DLA-1804-1","title":"curl - security update","status":"published","published":"2019-05-25T00:00:00Z","modified":"2026-03-09T01:18:04.246467Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"MGASA-2019-0337","title":"Updated curl packages fix security vulnerabilities","description":"The updated packages fix security vulnerabilities:\n\nAn integer overflow in curl's URL API results in a buffer overflow\nin libcurl 7.62.0 to and including 7.64.1. (CVE-2019-5435)\n\nA heap buffer overflow in the TFTP receiving code allows for DoS or\narbitrary code execution in libcurl versions 7.19.4 through 7.64.1\n(CVE-2019-5436).\n\nDouble-free vulnerability in the FTP-kerberos code in cURL 7.52.0 to\n7.65.3 (CVE-2019-5481).\n\nHeap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to\n7.65.3 (CVE-2019-5482).\n","status":"published","published":"2019-11-30T13:06:06Z","modified":"2026-04-16T04:43:05.660239405Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"openSUSE-SU-2019:1508-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2019-5436: Fixed a heap buffer overflow exists in tftp_receive_packet that receives data from a TFTP server (bsc#1135170).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2019-06-04T12:35:02Z","modified":"2026-02-04T02:25:35.928599Z","updated_at":"2026-11-02T16:58:30.784344Z"},{"id":"openSUSE-SU-2024:10582-1","title":"curl-7.79.1-1.1 on GA media","description":"These are all security issues fixed in the curl-7.79.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:40:36.472951Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"SUSE-SU-2019:1357-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2019-5436: Fixed a heap buffer overflow exists in tftp_receive_packet that receives data from a TFTP server (bsc#1135170).\n","status":"published","published":"2019-05-27T11:29:19Z","modified":"2026-02-04T04:23:29.404993Z","updated_at":"2026-11-02T15:53:45.926331Z"},{"id":"SUSE-SU-2019:1357-2","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2019-5436: Fixed a heap buffer overflow exists in tftp_receive_packet that receives data from a TFTP server (bsc#1135170).\n","status":"published","published":"2019-07-01T13:02:43Z","modified":"2025-05-02T04:09:20.379558Z","updated_at":"2026-11-02T15:53:45.926331Z"},{"id":"SUSE-SU-2019:1363-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2019-5436: Fixed a heap buffer overflow exists in tftp_receive_packet that receives data from a TFTP server (bsc#1135170).\n","status":"published","published":"2019-05-28T08:51:21Z","modified":"2026-02-04T04:17:51.314432Z","updated_at":"2026-11-02T15:53:45.926331Z"},{"id":"SUSE-SU-2019:14064-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2019-5436: Fixed a heap buffer overflow exists in tftp_receive_packet that receives data from a TFTP server (bsc#1135170).\n","status":"published","published":"2019-05-24T09:56:38Z","modified":"2026-02-04T03:30:44.393339Z","updated_at":"2026-11-02T15:53:46.44301Z"},{"id":"SUSE-SU-2019:2009-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\nSecurity issue fixed:\n\n- CVE-2019-5436: Fixed a heap buffer overflow in tftp_receive_packet() (bsc#1135170).\n","status":"published","published":"2019-07-29T12:44:54Z","modified":"2026-02-04T03:10:14.18315Z","updated_at":"2026-11-02T15:53:46.44301Z"},{"id":"USN-3993-1","title":"curl vulnerabilities","description":"Wenchao Li discovered that curl incorrectly handled memory in the\ncurl_url_set() function. A remote attacker could use this issue to cause\ncurl to crash, resulting in a denial of service, or possibly execute\narbitrary code. This issue only affected Ubuntu 19.04. (CVE-2019-5435)\n\nIt was discovered that curl incorrectly handled memory when receiving data\nfrom a TFTP server. A remote attacker could use this issue to cause curl to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2019-5436)\n","status":"published","published":"2019-05-22T12:45:36Z","modified":"2026-04-27T09:15:59.055337Z","updated_at":"2026-11-02T16:58:14.019824Z"},{"id":"USN-3993-2","title":"curl vulnerability","description":"USN-3993-1 fixed a vulnerability in curl. This update provides\nthe corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that curl incorrectly handled memory when receiving data\n from a TFTP server. A remote attacker could use this issue to cause curl to\n crash, resulting in a denial of service, or possibly execute arbitrary\n code. (CVE-2019-5436)\n","status":"published","published":"2019-05-22T16:19:07Z","modified":"2026-04-27T09:15:49.477792Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}