Headline
CVE-2023-25155: Release 6.2.11 · redis/redis
Redis is an in-memory database that persists on disk. Authenticated users issuing specially crafted SRANDMEMBER, ZRANDMEMBER, and HRANDFIELD commands can trigger an integer overflow, resulting in a runtime assertion and termination of the Redis server process. This problem affects all Redis versions. Patches were released in Redis version(s) 6.0.18, 6.2.11 and 7.0.9.
Upgrade urgency: SECURITY, contains fixes to security issues.
Security Fixes:
- (CVE-2023-25155) Specially crafted SRANDMEMBER, ZRANDMEMBER, and HRANDFIELD
commands can trigger an integer overflow, resulting in a runtime assertion
and termination of the Redis server process. - (CVE-2022-36021) 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.
Bug Fixes
- Fix a crash when reaching the maximum invalidations limit of client-side tracking (#11814)
- Fix cluster inbound link keepalive time (#11785)
- Make sure that fork child doesn’t do incremental rehashing (#11692)
Performance and resource utilization improvements
- Avoid realloc to reduce size of strings when it is unneeded (#11766)
Related news
Gentoo Linux Security Advisory 202408-5 - Multiple vulnerabilities have been discovered in Redis, the worst of which may lead to a denial of service or possible remote code execution. Versions greater than or equal to 7.2.4 are affected.
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.
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.