Heap-based Buffer Overflow Affecting redis-devel package, versions <0:5.0.3-2.module+el8.0.0.z+3657+acb471dc


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    15.17% (96th percentile)

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  • Snyk ID SNYK-CENTOS8-REDISDEVEL-1984508
  • published 26 Jul 2021
  • disclosed 19 Jun 2019

How to fix?

Upgrade Centos:8 redis-devel to version 0:5.0.3-2.module+el8.0.0.z+3657+acb471dc or higher.

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 Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A heap-buffer overflow vulnerability was found in the Redis hyperloglog data structure versions 3.x before 3.2.13, 4.x before 4.0.14 and 5.x before 5.0.4. By carefully corrupting a hyperloglog using the SETRANGE command, an attacker could trick Redis interpretation of dense HLL encoding to write up to 3 bytes beyond the end of a heap-allocated buffer.

CVSS Scores

version 3.1
Expand this section

NVD

7.2 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High