Local denial of service in NetBSD



Published: 2018-01-03
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Operating systems & Components / Operating system

Vendor NetBSD Foundation, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU9832

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to an input validation error in virecover script. A local unprivileged user can delete arbitrary file within the root / directory.

Mitigation

Install update from vendor's website.

Vulnerable software versions

NetBSD: 6.0 - 7.0.2

External links

http:ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2018-002.txt.asc


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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