Fedora EPEL 9 update for opendkim



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-48521
CWE-ID CWE-254
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

opendkim
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU83527

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-48521

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security measures.

The vulnerability exists due to improper tracking of ordinal numbers when removing fake Authentication-Results header fields. A remote attacker can create a specially crafted e-mail message with a fake sender address that will be treated as a message having a valid DKIM signature by software that relies on Authentication-Results from OpenDKIM.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 9

opendkim: before 2.11.0-0.36.el9

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-9a05f8b1eb


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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