Service crash via command argument integer overflow
Published Jan 20, 2023 · Updated Nov 3, 2025
Integer overflow in Redis before 6.0.17, 6.2 through 6.2.8, and 7.0 through 7.0.7 allows remote authenticated users to crash the server. In setrangeCommand, Redis adds the supplied offset to the value length before validating the total, while sortCommandGeneric adds unbounded LIMIT values; either calculation can overflow and drive an impossible allocation. Access to an authenticated Redis command connection is required, and successful exploitation aborts the server with an out-of-memory panic without reported data disclosure or modification.
Summary
What happened
Integer overflow in Redis before 6.0.17, 6.2 through 6.2.8, and 7.0 through 7.0.7 allows remote authenticated users to crash the server. In setrangeCommand, Redis adds the supplied offset to the value length before validating the total, while sortCommandGeneric adds unbounded LIMIT values; either calculation can overflow and drive an impossible allocation. Access to an authenticated Redis command connection is required, and successful exploitation aborts the server with an out-of-memory panic without reported data disclosure or modification.
The record
- CVE
- CVE-2022-35977
- Published
- Jan 20, 2023
- Updated
- Nov 3, 2025
- Vendor
- Redis
- Product
- Redis
- Classifications
- CWE-190, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 20, 2023CVE publishedPublication date reported by the CVE source.
- Nov 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 6.0.17
- Affected versionversion=>= 6.2, < 6.2.9
- Affected versionversion=>= 7.0, < 7.0.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- SETRANGE maximum-offset crash reproductionfunctional · demonstrated
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Technologies
Your stack
See the directory against your own environment.
Your stack
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