CVE-2022-36021

Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like SCAN or KEYS) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.

References

Affected packages

Git / github.com/redis/redis

Affected ranges

Type: GIT
Repo: https://github.com/redis/redis
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

dcbfcb916ca1a269b3feef86ee86835294758f84

Affected versions

1.*

1.3.6

2.*

2.2-alpha0

2.2-alpha1

2.2-alpha2

2.2-alpha3

2.2-alpha4

2.2-alpha5

2.2-alpha6

2.2.0-rc1

2.3-alpha0

3.*

3.0-alpha0

v1.*

v1.3.10

v1.3.11

v1.3.12

v1.3.7

v1.3.8

v1.3.9

v2.*

v2.0.0-rc1

v2.1.1-watch

Other

vm-playpen

with-deprecated-diskstore

Database specific

{
    "vanir_signatures": [
        {
            "digest": {
                "line_hashes": [
                    "126464697838505507228666083962779546454",
                    "150412474198474738257319036961167457092",
                    "35374073575678203773399989303306961166",
                    "111634149353755209275426835518613667871",
                    "94232520062590603120052529204803997911",
                    "142664002336838874641599456823725507217",
                    "314198068333033048916605646879667238529",
                    "235428705830044225770427432796456894789",
                    "9750028865141680449935411996214012138",
                    "53458498070622451715640627479229719716",
                    "285867654145245020322252982284148133281",
                    "73512740762000367108698473547362467084",
                    "183999695971907554713422441496994192957",
                    "5157595485982869501254520368800120422",
                    "173020804748077245807074834168018712431",
                    "302128118842853102311713414874765200528",
                    "32658260615270067165067781859838400334"
                ],
                "threshold": 0.9
            },
            "target": {
                "file": "src/util.c"
            },
            "signature_version": "v1",
            "signature_type": "Line",
            "id": "CVE-2022-36021-1aa54db8",
            "source": "https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84",
            "deprecated": false
        },
        {
            "digest": {
                "length": 1840.0,
                "function_hash": "164722953920992462798870227519663273173"
            },
            "target": {
                "function": "stringmatchlen",
                "file": "src/util.c"
            },
            "signature_version": "v1",
            "signature_type": "Function",
            "id": "CVE-2022-36021-2429f3b2",
            "source": "https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84",
            "deprecated": false
        }
    ]
}