DEBIAN-CVE-2021-43305

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Source
https://security-tracker.debian.org/tracker/CVE-2021-43305
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43305.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-43305
Upstream
Published
2022-03-14T23:15:08Z
Modified
2025-09-19T07:31:52.197609Z
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / clickhouse

Package

Name
clickhouse
Purl
pkg:deb/debian/clickhouse?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
18.16.1+ds-7.2+deb11u1

Affected versions

18.*

18.16.1+ds-7.2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / clickhouse

Package

Name
clickhouse
Purl
pkg:deb/debian/clickhouse?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
18.16.1+ds-7.3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}