Fedora 35 update for systemd



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-3821
CWE-ID CWE-193
Exploitation vector Local
Public exploit N/A
Vulnerable software
Fedora
Operating systems & Components / Operating system

systemd
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Off-by-one

EUVDB-ID: #VU69807

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3821

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

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

The vulnerability exists due to an off-by-one error within the format_timespan() function in time-util.c. A local user can trigger an off-by-one error and perform a denial of service (DoS) attack.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 35

systemd: before 249.13-6.fc35

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2022-8ac4104a02


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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