HIGH 7.8 Microsoft
CVE-2021-46878
An issue was discovered in Treasure Data Fluent Bit 1.7.1 erroneous parsing in flb_pack_msgpack_to_json_format leads to type confusion bug that interprets whatever is on the stack as msgpack maps and arrays leading to use-after-free. This can be used by an attacker to craft a specially craft file and trick the victim opening it using the affect software triggering use-after-free and execute arbitrary code on the target system.
Microsoft Security Update 2023-Apr: An issue was discovered in Treasure Data Fluent Bit 1.7.1 erroneous parsing in flb_pack_msgpack_to_json_format leads to type confusion bug that interprets whatever is on the stack as msgpack maps and arrays leading to use-after-free. This can be used by an attacker to craft a specially craft file and trick the victim opening it using the affect software triggering use-after-free and execute arbitrary code on the target system.
Affected Products
- cm1 fluent-bit 1.5.2-3 on CBL Mariner 1.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-46878
- https://nvd.nist.gov/vuln/detail/CVE-2021-46878
This high severity vulnerability with a CVSS score of 7.8 was published on 2023-04-11 via Microsoft. Affected: cm1 fluent-bit 1.5.2-3 on CBL Mariner 1.0.
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