Ubuntu.comUB:CVE-2021-43304CVE-2021-43304
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
38.1%
Heap buffer overflow in Clickhouse’s LZ4 compression codec when parsing a
malicious query. There is no verification that the copy operations in the
LZ4::decompressImpl loop and especially the arbitrary copy operation
wildCopy<copy_amount>(op, ip, copy_end), don’t exceed the destination
buffer’s limits.
Bugs
References
github.com/ClickHouse/ClickHouse/commit/2aea1c8d4a5be320365472052d8a48bf69fd9fe9 (v21.9.1.7685)
github.com/ClickHouse/ClickHouse/commit/6d83eacec42c7c403c99804a713a9d38caa4a45d (v21.9.1.7685)
github.com/ClickHouse/ClickHouse/pull/27136
jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms
jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms/
launchpad.net/bugs/cve/CVE-2021-43304
nvd.nist.gov/vuln/detail/CVE-2021-43304
security-tracker.debian.org/tracker/CVE-2021-43304
www.cve.org/CVERecord?id=CVE-2021-43304
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
38.1%