CVE-2022-24834

A heap-based buffer overflow flaw was found in Redis. This flaw allows a local authenticated attacker user or attacker to execute a specially crafted Lua script in Redis. This attack triggers a heap overflow in the cjson and cmsgpack libraries, resulting in heap corruption and potential remote code execution.

Seiya Nakata and Yudai Fujiwara discovered that Redis incorrectly handled certain specially crafted Lua scripts. An attacker could possibly use this issue to cause heap corruption and execute arbitrary code. SeungHyun Lee discovered that Redis incorrectly handled specially crafted commands. An attacker could possibly use this issue to trigger an integer overflow, which might cause Redis to allocate impossible amounts of memory, resulting in a denial of service via an application crash.