Information disclosure in Awesome Libmemcached
CVE-2023-27478
libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.
Vulnerability class: Information Disclosure
EPSS: 0.007 (51.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Awesome Libmemcached
- Awesomized Libmemcached — versions > 1.0.18, < 1.1.4
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security-advisories@github.com (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2023-27478?
- CVE-2023-27478 is a medium-severity vulnerability in Awesome Libmemcached, classified under Information Disclosure. CVSS score: 6.5/10. Published 2023-03-07.
- How severe is CVE-2023-27478?
- Medium severity. CVSS v3 base score is 6.5 out of 10.