CVE-2021-43305
CVSS V2 Medium 6.5
CVSS V3 High 8.8
Description
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. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.
Overview
- CVE ID
- CVE-2021-43305
- Assigner
- reefs@jfrog.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-14T23:15:08
- Last Modified Date
- 2022-12-08T03:24:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:yandex:clickhouse:*:*:*:*:*:*:*:* | 1 | OR | 21.10.2.15 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms | Exploit Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43305 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43305 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:44:59 | Added to TrackCVE | |||
| 2022-12-06 12:18:53 | security@jfrog.com | reefs@jfrog.com | CVE Assigner | updated |
| 2022-12-06 12:18:53 | 2022-03-14T23:15Z | 2022-03-14T23:15:08 | CVE Published Date | updated |
| 2022-12-06 12:18:53 | 2022-11-04T08:15:27 | CVE Modified Date | updated | |
| 2022-12-06 12:18:53 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-06 12:18:58 | References | updated | ||
| 2022-12-08 03:46:53 | 2022-12-08T03:24:00 | CVE Modified Date | updated | |
| 2022-12-08 03:46:53 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |