Memory leak in Samba

1) Memory leak

EUVDB-ID: #VU44348

Risk: Medium

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:Green]

CVE-ID: CVE-2012-0817

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within smbd in Samba 3.6.x before 3.6.3 allows remote attackers to cause a denial of service (memory and CPU consumption) by making many connection requests. A remote attacker can perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samba: 3.6.0 - 3.6.2

CPE2.3

• cpe:2.3:a:samba:samba:3.6.2:*:*:*:*:*:*:*

External links

https://lists.fedoraproject.org/pipermail/package-announce/2012-February/072930.html
https://lists.opensuse.org/opensuse-security-announce/2012-04/msg00008.html
https://lists.opensuse.org/opensuse-security-announce/2012-04/msg00014.html
https://secunia.com/advisories/47763
https://secunia.com/advisories/48879
https://www.samba.org/samba/history/samba-3.6.3.html
https://www.samba.org/samba/security/CVE-2012-0817

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.