[USN-6476-1] Memcached vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-6476-1
November 13, 2023

memcached vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in memcached.

Software Description:
- memcached: High-performance in-memory object caching system

Details:

It was discovered that Memcached incorrectly handled certain multiget
requests in proxy mode. A remote attacker could use this issue to cause
Memcached to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2023-46852)

It was discovered that Memcached incorrectly handled certain proxy requests
in proxy mode. A remote attacker could use this issue to cause Memcached to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2023-46853)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.10:
memcached 1.6.21-1ubuntu0.23.10.1

Ubuntu 23.04:
memcached 1.6.18-1ubuntu0.1

Ubuntu 22.04 LTS:
memcached 1.6.14-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6476-1
CVE-2023-46852, CVE-2023-46853

Package Information:
https://launchpad.net/ubuntu/+source/memcached/1.6.21-1ubuntu0.23.10.1
https://launchpad.net/ubuntu/+source/memcached/1.6.18-1ubuntu0.1
https://launchpad.net/ubuntu/+source/memcached/1.6.14-1ubuntu0.1