Fedora EPEL 8 update for fastd

1) Buffer overflow

EUVDB-ID: #VU48061

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-27638

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 8

fastd: before 21-1.el8

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:fastd:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-4f4de3554d

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.