SB2020061528 - Input validation error in Redis

Description

This security bulletin contains information about 1 vulnerability.

1) Input validation error (CVE-ID: CVE-2020-14147)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows context-dependent attackers with permission to run Lua code in a Redis session to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (memory corruption and application crash) or possibly bypass intended sandbox restrictions via a large number, which triggers a stack-based buffer overflow.

Remediation

Install update from vendor's website.

References

• https://github.com/antirez/redis/commit/ef764dde1cca2f25d00686673d1bc89448819571
• https://github.com/antirez/redis/pull/6875