Envoy update for Wasmtime

Published: 2023-03-27 | Updated: 2024-01-18

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-26489 CVE-2023-27477
CWE-ID	CWE-787 CWE-20
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software	envoy Server applications / IDS/IPS systems, Firewalls and proxy servers
Vendor	Cloud Native Computing Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU73803

Risk: Medium

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/U:Green]

CVE-ID: CVE-2023-26489

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input on x86_64. A remote user can trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

envoy: 1.0.0 - 1.25.2

CPE2.3

External links

https://github.com/envoyproxy/envoy/releases/tag/v1.25.3

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Input validation error

EUVDB-ID: #VU73808

Risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-27477

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No