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CVE-2022-36021

Status Candidate

Overview

Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like `SCAN` or `KEYS`) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.

Related Files

Ubuntu Security Notice USN-6531-1
Posted Dec 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6531-1 - 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.

tags | advisory, denial of service, overflow, arbitrary
systems | linux, ubuntu
advisories | CVE-2022-24834, CVE-2022-35977, CVE-2022-36021, CVE-2023-25155, CVE-2023-28856, CVE-2023-45145
SHA-256 | 86bf06ce70285fd40bd6c61d977ae5a038cc5d7e43804cf355bef675f762bdeb
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