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High DSA-5001-1 8 CVEs

redis - security update

Published Nov 5, 2021 · Updated Mar 9, 2026

Fixed packages 2

ReleasePackageFixed in
Debian · 10 redis 5:5.0.14-1+deb10u1
Debian · 11 redis 5:6.0.16-1+deb11u1

Vulnerabilities 8

  • High 7.5
    CVE-2021-32626 EPSS 16%

    Lua scripts can overflow the heap-based Lua stack in Redis

    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 hea…

  • High 7.5

    Integer overflow issue with Streams in Redis

    Redis is an open source, in-memory database that persists on disk. In affected versions an integer overflow bug in Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves changing the default pr…

  • High 7.5
    CVE-2021-32628 EPSS 13%

    Vulnerability in handling large ziplists

    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 in…

  • High 7.5
    CVE-2021-32675 Public exploit EPSS 16%

    DoS vulnerability in Redis

    Redis is an open source, in-memory database that persists on disk. When parsing an incoming Redis Standard Protocol (RESP) request, Redis allocates memory according to user-specified values which determine the number of elements (in the multi-bulk header) and…

  • High 7.5

    Integer overflow issue with intsets in Redis

    Redis is an open source, in-memory database that persists on disk. An integer overflow bug affecting all versions of Redis can be exploited to corrupt the heap and potentially be used to leak arbitrary contents of the heap or trigger remote code execution. Th…

  • High 7.5

    Integer overflow that can lead to heap overflow in redis-cli, redis-sentinel on some platforms

    Redis is an open source, in-memory database that persists on disk. The redis-cli command line tool and redis-sentinel service may be vulnerable to integer overflow when parsing specially crafted large multi-bulk network replies. This is a result of a vulnerab…

  • High 7.5

    Integer overflow issue with strings in Redis

    Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the underlying string library can be used to corrupt the heap and potentially result with denial of service or remote code execution. The vulnerability involves chan…

  • Medium 5.3

    Vulnerability in Lua Debugger in Redis

    Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis w…