Denial of service in samba (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-16853
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
 samba (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU16157

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-2018-16853

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition.

The vulnerability exists due to use of experimental MIT Kerberos build of the Samba AD DC. A remote attacker can crash the KDC when Samba is built in the non-default MIT Kerberos configuration.

Mitigation

Install update from vendor's website.

Vulnerable software versions

samba (Alpine package): 4.7.0-r0 - 4.8.12-r2

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=5a2238501aacaf1b6c86507ac383022e1b09450e


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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