Red Hat update for samba4
| 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 Subscribe |
Red Hat Enterprise Linux for Scientific Computing Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems Operating systems & Components / Operating system Red Hat Enterprise Linux Desktop Operating systems & Components / Operating system Red Hat Enterprise Linux Workstation Operating systems & Components / Operating system Red Hat Enterprise Linux Server Operating systems & Components / Operating system |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
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 updates from vendor's website.
Red Hat Enterprise Linux for Scientific Computing: 6
Red Hat Enterprise Linux for IBM z Systems: 6
Red Hat Enterprise Linux Desktop: 6
Red Hat Enterprise Linux Workstation: 6
Red Hat Enterprise Linux Server: 6.0
External linkshttp://access.redhat.com/errata/RHSA-2017:3278
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.
2) Memory leak
EUVDB-ID: #VU9373
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-15275
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Red Hat Enterprise Linux for Scientific Computing: 6
Red Hat Enterprise Linux for IBM z Systems: 6
Red Hat Enterprise Linux Desktop: 6
Red Hat Enterprise Linux Workstation: 6
Red Hat Enterprise Linux Server: 6.0
External linkshttp://access.redhat.com/errata/RHSA-2017:3278
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.
