Gentoo update for tenshi



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-11746
CWE-ID CWE-271
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Gentoo Linux
Operating systems & Components / Operating system

Vendor Gentoo

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Privilege dropping

EUVDB-ID: #VU12170

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-11746

CWE-ID: CWE-271 - Privilege Dropping / Lowering Errors

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to creating a tenshi.pid file after dropping privileges to a non-root account. A local attacker can kill arbitrary processes by leveraging access to this non-root account for tenshi.pid modification before a root script executes a "kill `cat /pathname/tenshi.pid`" command.

Mitigation

Update the affected packages.
app-admin/tenshi to version: 0.17

Vulnerable software versions

Gentoo Linux: All versions

CPE2.3 External links

https://security.gentoo.org/glsa/201804-18


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.



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