Improper input validation in samba (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14907
CWE-ID CWE-20
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 samba (Alpine package)
Operating systems & Components / Operating system package or component

RoboHelp
Universal components / Libraries / Software for developers

Vendor Alpine Linux Development Team
Adobe

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU24466

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14907

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to incorrect processing of certain user-controlled string, if logging is enabled at level 3 or above. A remote attacker can send specially crafted data to the Samba DC and terminate Samba RPC server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

samba (Alpine package): 4.1.1-r0 - 4.8.12-r1

RoboHelp: 0.60.6-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=515e98e6bdc49a7db3aa081e1de4fd5f727bb851
https://git.alpinelinux.org/aports/commit/?id=46ba7ec46d3cb4084489531ce10e71e17963495b
https://git.alpinelinux.org/aports/commit/?id=0ed412d466e679ac0e649cf8c413b67f729bc5a8
https://git.alpinelinux.org/aports/commit/?id=b3a750a9f748a73e74fc78b2e49eb796e5496960
https://git.alpinelinux.org/aports/commit/?id=fddd8a3d858001f0e0d27c7fd9e1ffddf8ccdd2e


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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