NULL pointer dereference in samba (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14847
CWE-ID CWE-476
Exploitation vector 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) NULL pointer dereference

EUVDB-ID: #VU22331

Risk: Medium

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

CVE-ID: CVE-2019-14847

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within implementation of the MS-ADTS "3.1.1.3.1.3.3 Range Retrieval of Attribute Values" feature. A remote user with "get changes" extended access right can trigger NULL pointer dereference error and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

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

RoboHelp: 0.60.6-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=2eff8a828fa8e0df24702602a7a3280016efebf3
https://git.alpinelinux.org/aports/commit/?id=4da1ee1a718f0e9dfd6a6e91f9348fa96a58567d
https://git.alpinelinux.org/aports/commit/?id=1a4e1a61106f66fdcf65ec33a37a99cea23db966


Q & A

Can this vulnerability be exploited remotely?

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