Vulnerability · Published Feb 10, 2021 · Assigned by mitre
CVE-2021-27186
High 7.5
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.0%top 19.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Fluent Bit 1.6.10 has a NULL pointer dereference when an flb_malloc return value is not validated by flb_avro.c or http_server/api/v1/metrics.c.
Affected products (as reported)
References
- https://github.com/fluent/fluent-bit/issues/3044 x_refsource_MISC
- https://github.com/fluent/fluent-bit/pull/3045 x_refsource_MISC
- https://github.com/fluent/fluent-bit/pull/3047 x_refsource_MISC