Integer Overflow or Wraparound Affecting redis package, versions <6.0.14-6.8.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.38% (74th percentile)

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  • Snyk IDSNYK-SLES153-REDIS-2653950
  • published14 Apr 2022
  • disclosed23 Nov 2021

Introduced: 23 Nov 2021

CVE-2021-32628  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-680  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 redis to version 6.0.14-6.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream redis package and not the redis package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration parameters. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

CVSS Base Scores

version 3.1