CVE-2019-10192

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 26.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-07-11 · updated 2026-06-17
Weakness: CWE-122

Description

A heap-buffer overflow vulnerability was found in the Redis hyperloglog data structure versions 3.x before 3.2.13, 4.x before 4.0.14 and 5.x before 5.0.4. By carefully corrupting a hyperloglog using the SETRANGE command, an attacker could trick Redis interpretation of dense HLL encoding to write up to 3 bytes beyond the end of a heap-allocated buffer.

Affected products

Canonical Ubuntu Linux: 16.04, 18.04, 19.04
Debian Linux: 9.0, 10.0
Oracle Corporation Communications Operations Monitor: 3.4, 4.1
Red Hat Enterprise Linux: 8.0
RedHat Enterprise Linux Eus: 8.1, 8.2, 8.4
RedHat Enterprise Linux Server Aus: 8.2, 8.4
RedHat Enterprise Linux Server Tus: 8.2, 8.4
OpenStack: 9, 10, 13, 14
RedHat Software Collections: 1.0
Redis Labs Redis: from 3.0.0 before 3.2.13; from 4.0.0 before 4.0.14; from 5.0 before 5.0.4 — fixed in 3.2.13, 4.0.14, 5.0.4

How to fix

Upgrade to a fixed version: Redis Labs Redis 3.2.13, 4.0.14, 5.0.4. Check the vendor advisory for mitigations.

References

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