What is CVE-2019-16535?

CVE-2019-16535 is a critical-severity vulnerability in Clickhouse, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2019-12-30.

How severe is CVE-2019-16535?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-16535 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Out-of-bounds Read in Clickhouse

CVE-2019-16535

In all versions of ClickHouse before 19.14, an OOB read, OOB write and integer underflow in decompression algorithms can be used to achieve RCE or DoS via native protocol.

Vulnerability class: Buffer Overflow

EPSS: 0.017 (74.8th 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
N/a Clickhouse — versions All versions prior to version 19.14.

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

browser-security@yandex-team.ru (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-16535?: CVE-2019-16535 is a critical-severity vulnerability in Clickhouse, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2019-12-30.
How severe is CVE-2019-16535?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-16535 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.