Incorrect default permissions in kexec-tools



Published: 2022-03-10 | Updated: 2023-06-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-20269
CWE-ID CWE-276
Exploitation vector Local
Public exploit N/A
Vulnerable software
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kexec-tools
Other software / Other software solutions

Vendor

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Incorrect default permissions

EUVDB-ID: #VU77475

Risk: Low

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

CVE-ID: CVE-2021-20269

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local user can read arbitrary files and leak kernel internal information from a previous panic.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

kexec-tools: before 2.0.21-8

External links

http://bugzilla.redhat.com/show_bug.cgi?id=1934261


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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