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[email protected]CVE-2021-43304

HistoryMar 14, 2022 - 11:15 p.m.

CVE-2021-43304

2022-03-1423:15:08

CWE-787

CWE-122

[email protected]

web.nvd.nist.gov

101

cve-2021-43304

clickhouse

lz4

compression

buffer overflow

security vulnerability

nvd

6.5 Medium

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

8.8 High

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

8.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.2%

JSON

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.

Affected configurations

NVD

Node

yandexclickhouseRange<21.10.2.15

Node

debiandebian_linuxMatch10.0

CPENameOperatorVersion
yandex:clickhouseyandex clickhouselt21.10.2.15

CPE	Name	Operator	Version
yandex:clickhouse	yandex clickhouse	lt	21.10.2.15

CNA Affected

[
  {
    "vendor": "yandex",
    "product": "clickhouse",
    "versions": [
      {
        "version": "unspecified",
        "status": "affected",
        "lessThan": "21.10.2.15-stable",
        "versionType": "custom"
      }
    ]
  }
]