CVE-2023-27478

Public Exploit
Disclosure of unrelated data in libmemcached-awesome

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.15%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: awesomized libmemcached
Published at:
Updated at:

References

Link Tags
https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59 third party advisory patch
https://github.com/php-memcached-dev/php-memcached/issues/531 patch exploit third party advisory issue tracking
https://github.com/awesomized/libmemcached/commit/48dcc61a patch
https://github.com/awesomized/libmemcached/releases/tag/1.1.4 release notes

Frequently Asked Questions

What is the severity of CVE-2023-27478?
CVE-2023-27478 has been scored as a medium severity vulnerability.
How to fix CVE-2023-27478?
To fix CVE-2023-27478, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-27478 being actively exploited in the wild?
It is possible that CVE-2023-27478 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-27478?
CVE-2023-27478 affects awesomized libmemcached.
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