SB2023032701 - Envoy update for Wasmtime

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Main Vulnerability Database SB2023032701

SB2023032701 - Envoy update for Wasmtime

Published: March 27, 2023 Updated: January 18, 2024

Security Bulletin ID SB2023032701
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2023-26489)

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

CVSSv4: 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


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.


2) Input validation error (CVE-ID: CVE-2023-27477)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to miscompilation of "i8x16.select" with the same inputs on x86_64. A remote user can cause the WebAssembly instruction to produce incorrect results for the i8x16.select instruction.


Remediation

Install update from vendor's website.

References