libmemcached-awesome up to 1.1.3 Key information disclosure

Summaryinfo

A vulnerability categorized as problematic has been discovered in libmemcached-awesome up to 1.1.3. Affected is an unknown function of the component Key Handler. Executing a manipulation can lead to information disclosure. This vulnerability is handled as CVE-2023-27478. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in libmemcached-awesome up to 1.1.3. It has been declared as critical. This vulnerability affects an unknown functionality of the component Key Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released 03/08/2023 as 531. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-27478 since 03/01/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 1.1.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• libmemcached-awesome

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3

License

• open-source

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