Red Hat update for Samba
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2017-2619 CVE-2017-9461 |
| CWE-ID | CWE-362 CWE-835 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux for x86_64 Operating systems & Components / Operating system |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Race condition
EUVDB-ID: #VU6630
Risk: Low
CVSSv3.1: 3.9 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-2619
Exploit availability: Yes
DescriptionThe vulnerability allows a remote authenticated user to access otherwise restricted files.
The vulnerability exists due to a race condition when processing symlinks, which lead to files outside the shared folder. An attacker with ability to crate a symlink on a network share can access files not exported under the share definition.
Successful exploitation of the vulnerability may allow an attacker to gain access to potentially sensitive data, but requires that server is under heavy load.
Install update from vendor's website.
Vulnerable software versionsRed Hat Enterprise Linux for x86_64: 6
External linkshttp://access.redhat.com/errata/RHSA-2017:2778
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. However, proof of concept for this vulnerability is available.
2) Infinite loop
EUVDB-ID: #VU7663
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-9461
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The weakness exists due to improper handling of symbolic links. A remote attacker with access to trusted or internal networks can transmit specially crafted data, trigger and infinite loop and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Install update from vendor's website.
Vulnerable software versionsRed Hat Enterprise Linux for x86_64: 6
External linkshttp://access.redhat.com/errata/RHSA-2017:2778
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
