{"vulnerability": "CVE-2020-21677", "sightings": [{"uuid": "4bdfce3e-8e34-463a-89e1-98aa4ed9bcef", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-21677", "type": "seen", "source": "https://t.me/cibsecurity/27098", "content": "\u203c CVE-2020-21677 \u203c\n\nA heap-based buffer overflow in the sixel_encoder_output_without_macro function in encoder.c of Libsixel 1.8.4 allows attackers to cause a denial of service (DOS) via converting a crafted PNG file into Sixel format.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-11T00:37:36.000000Z"}]}