Heap-based Buffer Overflow Affecting redis-devel package, versions <0:5.0.3-5.module+el8.4.0+659+cf535ef1


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
1.16% (85th percentile)

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  • Snyk IDSNYK-ROCKY8-REDISDEVEL-3286558
  • published3 Feb 2023
  • disclosed4 Oct 2021

Introduced: 4 Oct 2021

CVE-2021-32626  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 redis-devel to version 0:5.0.3-5.module+el8.4.0+659+cf535ef1 or higher.
This issue was patched in RLSA-2021:3918.

NVD Description

Note: Versions mentioned in the description apply only to the upstream redis-devel package and not the redis-devel package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.

CVSS Scores

version 3.1