Use-after-free in samba (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-14746 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
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.
1) Use-after-free
EUVDB-ID: #VU9372
Risk: Medium
CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-14746
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a use-after-free error when processing SMB1 requests. A remote attacker can send a specially crafted SMB1 request to vulnerable server, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable SMB server.
Install update from vendor's website.
Vulnerable software versionssamba (Alpine package): 4.1.1-r0 - 4.4.16-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=6245a2ceb9dc360ca5f8beb4419ea14952923a37
http://git.alpinelinux.org/aports/commit/?id=009040103407533ea980becb5012c7d386900453
http://git.alpinelinux.org/aports/commit/?id=9bc23b7dcfc97e7686a3bf86040af5b192e3cd52
http://git.alpinelinux.org/aports/commit/?id=8b1320cfb5bc14ab3b588a3fb25b4b80d6f4fb39
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
