UpHeron
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Servers and applications

CVE-2023-47118

Heap buffer overflow in T64 codec decompression

Severity
Critical 9.8
Published
18 Dec 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
23.3.16.7, 23.8.6.16, 23.9.2.47475, 23.9.4.11, 23.10.2.13
Also known as
GHSA-g22g-p6q2-x39v
Sources
NVD, Project advisories (GitHub)

Description

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time. A heap buffer overflow issue was discovered in ClickHouse server. An attacker could send a specially crafted payload to the native interface exposed by default on port 9000/tcp, triggering a bug in the decompression logic of T64 codec that crashes the ClickHouse…

Affected software

SoftwareAffected versions
ClickHouseServers and applications · cpe:a:clickhouse:clickhouse
  • From 23.3 before 23.3.16.7
  • From 23.8 before 23.8.6.16
  • From 23.9 before 23.9.4.11
  • From 23.10 before 23.10.2.13
ClickHouseServers and applications · github:clickhouse/clickhouse
  • Every version before 23.10.2.13
  • Every version before 23.8.6.16
  • Every version before 23.9.4.11
  • Every version before 23.3.16.7
  • Every version before 23.9.2.47475

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-47118
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-47118
  • GitHub Advisory Database https://github.com/advisories/GHSA-g22g-p6q2-x39v
  • github.com https://github.com/ClickHouse/ClickHouse/security/advisories/GHSA-g22g-p6q2-x39v