CVEvulnerability

CVE-2021-32625

8.8 HIGH Published 2021-06-02 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-02
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
Weaknesses
CWE-190, CWE-680

Description

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer, could be exploited using the STRALGO LCS command to corrupt the heap and potentially result with remote code execution. This is a result of an incomplete fix by CVE-2021-29477. The problem is fixed in version 6.2.4 and 6.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the STRALGO LCS command. On 64 bit systems which have the fixes of CVE-2021-29477 (6.2.3 or 6.0.13), it is sufficient to make sure that the proto-max-bulk-len config parameter is smaller than 2GB (default is 512MB).

Affected configurations

• redislabs redis (>= 6.0.0 < 6.0.14) • redislabs redis (>= 6.2.0 < 6.2.4) • fedoraproject fedora 33 • fedoraproject fedora 34

Related

Weakness · CWE (2)

  • CWE-190 Integer Overflow or Wraparound weakness
  • CWE-680 Integer Overflow to Buffer Overflow weakness

References