Denial of service in Samba



| Updated: 2017-08-02
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-9461
CWE-ID CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Samba
Server applications / Directory software, identity management

Vendor Samba

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Infinite loop

EUVDB-ID: #VU7663

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-9461

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The weakness exists due to improper handling of symbolic links. A remote attacker with access to trusted or internal networks can transmit specially crafted data, trigger and infinite loop and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update to version 4.5.6.

Vulnerable software versions

Samba: 4.4.0 - 4.5.5

CPE2.3 External links

https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.



###SIDEBAR###