{"vulnerability": "CVE-2021-4453", "sightings": [{"uuid": "650e6549-cc53-4018-9103-f4aef2610a0d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-44532", "type": "seen", "source": "https://gist.github.com/ryon341/0f355eed7cfb4d60bfbc0955055e5cf0", "content": "", "creation_timestamp": "2025-07-19T23:42:31.000000Z"}, {"uuid": "c355ea67-7156-4dbe-b450-70101256c521", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-44531", "type": "seen", "source": "https://gist.github.com/ryon341/0f355eed7cfb4d60bfbc0955055e5cf0", "content": "", "creation_timestamp": "2025-07-19T23:42:31.000000Z"}, {"uuid": "c18bb06b-19ad-4637-b8b4-2792dd2be0df", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-44537", "type": "seen", "source": "https://t.me/cibsecurity/35648", "content": "\u203c CVE-2021-44537 \u203c\n\nownCloud owncloud/client before 2.9.2 allows Resource Injection by a server into the desktop client via a URL, leading to remote code execution.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2024-10-22T16:36:05.000000Z"}, {"uuid": "2d1fe984-36c4-45c5-82c5-634010f00a16", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2021-44532", "type": "seen", "source": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0316/", "content": "", "creation_timestamp": "2026-03-19T00:00:00.000000Z"}, {"uuid": "5d4a2d74-1ef7-4c07-878c-963a8c99a896", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2021-44534", "type": "seen", "source": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0316/", "content": "", "creation_timestamp": "2026-03-19T00:00:00.000000Z"}, {"uuid": "4e9c11f6-cb96-4e16-8576-d5e90e8870bb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-44532", "type": "seen", "source": "https://t.me/cibsecurity/38046", "content": "\u203c CVE-2021-44532 \u203c\n\nNode.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-02-24T22:14:56.000000Z"}, {"uuid": "d1a39bff-73f0-49f2-a66f-b295d008c81b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-44538", "type": "seen", "source": "https://t.me/cibsecurity/33921", "content": "\u203c CVE-2021-44538 \u203c\n\nThe olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session in such a way that, for some buffer sizes, a buffer overflow happens on a call to olm_session_describe. Furthermore, safe buffer sizes were undocumented. The overflow content is partially controllable by the attacker and limited to ASCII spaces and digits. The known affected products are Element Web And SchildiChat Web.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-12-14T16:12:55.000000Z"}]}