NULL pointer dereference in Treasuredata Fluent_bit
CVE-2021-27186
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.
EPSS: 0.020 (78.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Treasuredata Fluent_bit — versions 1.6.10
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-27186?
- CVE-2021-27186 is a high-severity vulnerability in Treasuredata Fluent_bit, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-02-10.
- How severe is CVE-2021-27186?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-27186 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.