CVE-2021-43305 (GCVE-0-2021-43305)

Vulnerability from cvelistv5 – Published: 2022-03-14 00:00 – Updated: 2024-08-04 03:55
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
Assigner
Impacted products
Vendor Product Version
yandex clickhouse Affected: unspecified , < 21.10.2.15-stable (custom)
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            "url": "https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms"
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            "name": "[debian-lts-announce] 20221104 [SECURITY] [DLA 3176-1] clickhouse security update",
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          "versions": [
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          "value": "Heap buffer overflow in Clickhouse\u0027s 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\u003ccopy_amount\u003e(op, ip, copy_end), don\u2019t exceed the destination buffer\u2019s limits. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call."
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    "state": "PUBLISHED"
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