Local denial of service in tuned

1) Incorrect default permissions

EUVDB-ID: #VU101021

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-1820

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect default permissions. A local unprivileged user can kill the ktune service.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

tuned (Red Hat package): 0.1.0 - 0.2.22

CPE2.3

• cpe:2.3:a:red_hat:tuned_redhat_package:0.1.0:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:a:red_hat:tuned_redhat_package:0.1.1:*:*:*:*:red_hat_enterprise_linux:*:*
• cpe:2.3:a:red_hat:tuned_redhat_package:0.1.2:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://bugzilla.redhat.com/show_bug.cgi?id=918233
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-1820
https://security-tracker.debian.org/tracker/CVE-2013-1820

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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