Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2016-2123 |
CWE-ID | CWE-191 |
Exploitation vector | Local 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 medium risk vulnerability.
EUVDB-ID: #VU6632
Risk: Medium
CVSSv4.0: 7.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green]
CVE-ID: CVE-2016-2123
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated user to compromise vulnerable server.
The vulnerability exists due to integer underflow within ndr_pull_dnsp_name routine when processing dnsRecord attribute in LDAP requests. A remote authenticated attacker can send a specially crafted LDAP request to the affected server, trigger heap-based buffer overflow and execute arbitrary code on the target sever.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable server.
Install update from vendor's website.
Vulnerable software versionssamba (Alpine package): 4.1.1-r0 - 4.2.14-r0
CPE2.3https://git.alpinelinux.org/aports/commit/?id=70271759e87dbeef4f90e6dcae9183d5ea5e3048
https://git.alpinelinux.org/aports/commit/?id=3dfb07619755d258fed8bfd510b53e3d8a692361
https://git.alpinelinux.org/aports/commit/?id=80cc0ea448006f152c00467301743534bcd0ee65
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.