OpenSUSE Linux update for samba



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-14746
CVE-2017-15275
CWE-ID CWE-416
CWE-401
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Samba
Server applications / Directory software, identity management

Vendor Samba

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU9372

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-14746

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The 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.

Mitigation

Update the affected packages.

Vulnerable software versions

Samba: 4.0.0 - 4.7.2

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2017-11/msg00064.html


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).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Memory leak

EUVDB-ID: #VU9373

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-15275

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to access potentially sensitive information.

The vulnerability exists due to uncleared heap memory is sent to the client. A remote attacker can obtain potentially sensitive information and use it in further attacks.

Mitigation

Update the affected packages.

Vulnerable software versions

Samba: 3.6.0 - 4.7.2

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2017-11/msg00064.html


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).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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