Buffer overflow in Arista EOS

1) Buffer overflow

EUVDB-ID: #VU109358

Risk: Medium

CVSSv4.0: 2.3 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-24548

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when handling packets. A remote attacker can send malformed or truncated packets over a VXLAN tunnel, trigger buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Arista Extensible Operating System (EOS): before

CPE2.3

• cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*

External links

https://www.arista.com/en/support/advisories-notices/security-advisory/18043-security-advisory-0089

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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