Vulnerability identifier: #VU55426

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-36386

CWE-ID: CWE-665

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Fetchmail
Client/Desktop applications / Office applications

Vendor: fetchmail.berlios.de

Description

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

The vulnerability exists due to improper initialization when logging error messages. A local user can trigger an error condition on the fetchmail side and gain access to sensitive information or perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fetchmail: 6.4.0 - 6.4.20

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External links
http://www.fetchmail.info/fetchmail-SA-2021-01.txt

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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.