Brocade Fabric OS update for GNU Coreutils



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-18018
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Brocade Fabric OS
Operating systems & Components / Operating system

Vendor Brocade

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Race condition

EUVDB-ID: #VU33153

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-18018

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local authenticated user to manipulate data.

In GNU Coreutils through 8.29, chown-core.c in chown and chgrp does not prevent replacement of a plain file with a symlink during use of the POSIX "-R -L" options, which allows local users to modify the ownership of arbitrary files by leveraging a race condition.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Brocade Fabric OS: before 9.1.0

CPE2.3 External links

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-2073


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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