Ubuntu update for quagga

1) Input validation error

EUVDB-ID: #VU97120

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-2024-44070

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input within the bgp_attr_encap() function in bgpd/bgp_attr.c. A remote attacker can send specially crafted BGP traffic to the daemon and perform a denial of service (DoS) attack.

Mitigation

Update the affected package quagga to the latest version.

Vulnerable software versions

Ubuntu: 18.04

quagga-bgpd (Ubuntu package): before Ubuntu Pro

quagga (Ubuntu package): before Ubuntu Pro

CPE2.3

• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:quagga-bgpd_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:quagga_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-7230-1

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.