Denial of service in Dormando Memcached

1) Integer overflow

EUVDB-ID: #VU11124

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1000127

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the items.c:item_free() function due to improper bounds checks. A remote attacker can trigger integer overflow and cause the service to crash.

Mitigation

Update to version 1.4.37 or later.

Vulnerable software versions

memcached: 1.4 - 1.4.36

CPE2.3

• cpe:2.3:a:memcached:memcached:1.4:*:*:*:*:*:*:*
• cpe:2.3:a:memcached:memcached:1.4.25:*:*:*:*:*:*:*
• cpe:2.3:a:memcached:memcached:1.4.30:*:*:*:*:*:*:*

External links

https://github.com/memcached/memcached/commit/a8c4a82787b8b6c256d61bd5c42fb7f92d1bae00

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.