{"vulnerability": "CVE-2021-47186", "sightings": [{"uuid": "418867f6-ad8d-45e5-a765-2bb7261d0c84", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-47186", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/4921", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2021-47186\n\ud83d\udd25 CVSS Score: N/A\n\ud83d\udd39 Description: In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58\n\ud83d\udccf Published: 2024-04-10T18:56:26.297Z\n\ud83d\udccf Modified: 2025-02-21T17:04:55.843Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9\n2. https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10\n3. https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916", "creation_timestamp": "2025-02-21T17:18:15.000000Z"}, {"uuid": "8e30ee24-cef9-4ef6-a7e2-3000e827b392", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-47186", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/16502", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2021-47186\n\ud83d\udd25 CVSS Score: N/A\n\ud83d\udd39 Description: In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58\n\ud83d\udccf Published: 2024-04-10T18:56:26.297Z\n\ud83d\udccf Modified: 2025-05-15T12:32:23.102Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9\n2. https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10\n3. https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916", "creation_timestamp": "2025-05-15T13:33:50.000000Z"}, {"uuid": "2a7b7d49-8031-40d7-8094-d9df5b453a1d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-47186", "type": "published-proof-of-concept", "source": "Telegram/ftYFmdOTYyerA--dwl02CIr3tlYgm12qeRYrhI8q6FRmYREr", "content": "", "creation_timestamp": "2025-02-21T22:10:25.000000Z"}]}