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GoogleOSV:BIT-FLUENT-BIT-2020-35963

HistoryMar 06, 2024 - 10:52 a.m.

BIT-fluent-bit-2020-35963

2024-03-0610:52:31

Google

osv.dev

fluent bit

out-of-bounds write

flb_gzip.c

gzip data-size expansion

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.2 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.7%

JSON

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.

CPENameOperatorVersion
fluent-bitlt1.6.4

CPE	Name	Operator	Version
	fluent-bit	lt	1.6.4

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=27261

fluentbit.io/announcements/v1.6.4/

github.com/fluent/fluent-bit/commit/cadff53c093210404aed01c4cf586adb8caa07af

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.2 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.7%

JSON

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