# CVE-2023-27478: libmemcached: libmemcached-awesome is an open source C/C++ client library and tools for the memcached server

CVE-2023-27478 is fixed in libmemcached on 1 platform, first by DEBIAN-CVE-2023-27478, released March 7, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-27478
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0075
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 7, 2023

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libmemcached Debian 12.15 (bookworm) | 1.1.4-1 | [DEBIAN-CVE-2023-27478](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27478.md) | Mar 7, 2023 |
| Linux | libmemcached Debian 13.5 (trixie) | 1.1.4-1 | [DEBIAN-CVE-2023-27478](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27478.md) | Mar 7, 2023 |
| Linux | libmemcached Debian 14 | 1.1.4-1 | [DEBIAN-CVE-2023-27478](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27478.md) | Mar 7, 2023 |

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