Cross-key data disclosure via unrecovered timed-out response
Published Mar 7, 2023 · Updated Feb 25, 2025
Information disclosure in Awesomized libmemcached-awesome later than 1.0.18 and before 1.1.4 allows remote attackers to receive another key's data. The response reader treats a polling timeout as nonfatal and leaves the connection open, so a later request can consume the timed-out request's queued response. The condition requires a low POLL_TIMEOUT and reuse of the same connection after a timeout; exposure is limited to data held for another requested key.
Summary
What happened
Information disclosure in Awesomized libmemcached-awesome later than 1.0.18 and before 1.1.4 allows remote attackers to receive another key's data. The response reader treats a polling timeout as nonfatal and leaves the connection open, so a later request can consume the timed-out request's queued response. The condition requires a low POLL_TIMEOUT and reuse of the same connection after a timeout; exposure is limited to data held for another requested key.
The record
- CVE
- CVE-2023-27478
- Published
- Mar 7, 2023
- Updated
- Feb 25, 2025
- Vendor
- Awesomized
- Product
- libmemcached-awesome
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 7, 2023CVE publishedPublication date reported by the CVE source.
- Feb 25, 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=> 1.0.18, < 1.1.4
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
- get returns random values when lower than default OPT_POLL_TIMEOUT is setproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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