Vulnerability · Published Jan 3, 2021 · Assigned by mitre
CVE-2020-35963
High 7.8
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 1.3% (higher than 71% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.3%top 28.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
flb_gzip_compress in flb_gzip.c in Fluent Bit before 1.6.4 has an out-of-bounds write because it does not use the correct calculation of the maximum gzip data-size expansion.
Affected products (as reported)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27261 x_refsource_MISC
- https://fluentbit.io/announcements/v1.6.4/ x_refsource_MISC
- https://github.com/fluent/fluent-bit/commit/cadff53c093210404aed01c4cf586adb8caa07af x_refsource_MISC