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Ubuntu 24.04 Redis Critical Lua Denial of Service Vulnerability USN-8169-1

ubuntu
Calendar Grey April 14, 2026
Dist Ubuntu Esm H88
Security advisory for Redis and Lua affected by critical issues in multiple Ubuntu LTS versions. Immediate action required.
Several security issues were fixed in Redis, lua5.1, lua-cjson, lua-bitop.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in Redis, lua5.1, lua-cjson, lua-bitop. Software Description: - redis: Persistent key-value database with network interface - lua-bitop: fast bit manipulation library for the Lua language - lua-cjson: JSON parser/encoder for Lua language - lua5.1: Lua is an embeddable scripting language Details: It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue was only addressed in lua5.1 on Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2025-49844) It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code....

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu redis Lua

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS redis 5:7.0.15-1ubuntu0.24.04.4 redis-sentinel 5:7.0.15-1ubuntu0.24.04.4 redis-server 5:7.0.15-1ubuntu0.24.04.4 redis-tools 5:7.0.15-1ubuntu0.24.04.4 Ubuntu 22.04 LTS liblua5.1-0 5.1.5-8.1ubuntu0.22.04.1~esm1 Available with Ubuntu Pro liblua5.1-0-dev 5.1.5-8.1ubuntu0.22.04.1~esm1 Available with Ubuntu Pro liblua5.1-bitop-dev 1.0.2-5ubuntu0.22.04.1~esm2 Available with Ubuntu Pro liblua5.1-bitop0 1.0.2-5ubuntu0.22.04.1~esm2 Available with Ubuntu Pro lua-bitop 1.0.2-5ubuntu0.22.04.1~esm2 Available with Ubuntu Pro lua-bitop-dev 1.0.2-5ubuntu0.22.04.1~esm2 Available with Ubuntu Pro lua-cjson 2.1.0+dfsg-2.1ubuntu0.22.04.1~esm2 Available with Ubuntu Pro lua-cjson-dev 2.1.0+dfsg-2.1ubuntu0.22.04.1~esm2 Available with Ubuntu Pro lua5.1 5.1.5-8.1ubuntu0.22.04.1~esm1 Available with Ubuntu Pro Ubuntu 20.04 LTS liblua5.1-0 5.1.5-8.1ubuntu0.20.04.1~esm1 Available with Ubuntu Pro liblua5.1-0-dev 5.1.5-8.1ubuntu0.20.04.1~esm1 Available with Ubuntu Pro liblua5.1-bitop-dev 1.0.2-5ubuntu0.20.04.1~esm2 Available with Ubuntu Pro liblua5.1-bitop0 1.0.2-5ubuntu0.20.04.1~esm2 Available with Ubuntu Pro lua-bitop 1.0.2-5ubuntu0.20.04.1~esm2 Available with Ubuntu Pro lua-bitop-dev 1.0.2-5ubuntu0.20.04.1~esm2 Available with Ubuntu Pro lua-cjson 2.1.0+dfsg-2.1ubuntu0.20.04.1~esm2 Available with Ubuntu Pro lua-cjson-dev 2.1.0+dfsg-2.1ubuntu0.20.04.1~esm2 Available with Ubuntu Pro lua5.1 5.1.5-8.1ubuntu0.20.04.1~esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS redis 5:4.0.9-1ubuntu0.2+esm7 Available with Ubuntu Pro redis-sentinel 5:4.0.9-1ubuntu0.2+esm7 Available with Ubuntu Pro redis-server 5:4.0.9-1ubuntu0.2+esm7 Available with Ubuntu Pro redis-tools 5:4.0.9-1ubuntu0.2+esm7 Available with Ubuntu Pro Ubuntu 16.04 LTS redis-sentinel 2:3.0.6-1ubuntu0.4+esm5 Available with Ubuntu Pro redis-server 2:3.0.6-1ubuntu0.4+esm5 Available with Ubuntu Pro redis-tools 2:3.0.6-1ubuntu0.4+esm5 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8169-1

CVE-2022-24834, CVE-2024-31449, CVE-2025-49844

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8169-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu redis Lua

Package Information

https://launchpad.net/ubuntu/+source/redis/5:7.0.15-1ubuntu0.24.04.4

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