Buffer overflow in Clickhouse-Driver Project
CVE-2020-26759
clickhouse-driver before 0.1.5 allows a malicious clickhouse server to trigger a crash or execute arbitrary code (on a database client) via a crafted server response, due to a buffer overflow.
Vulnerability class: Buffer Overflow
EPSS: 0.026 (83.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Clickhouse-driver_project Clickhouse-driver
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-26759?
- CVE-2020-26759 is a critical-severity vulnerability in Clickhouse-Driver Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-01-06.
- How severe is CVE-2020-26759?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-26759 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.