SB2023030814 - Denial of service in Drachtio Server

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Main Vulnerability Database SB2023030814

SB2023030814 - Denial of service in Drachtio Server

Published: March 8, 2023

Security Bulletin ID SB2023030814
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Off-by-one (CVE-ID: CVE-2022-47517)

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

The vulnerability exists due to a boundary error in url_canonize2() when processing UDP packets. A remote attacker can send a specially crafted UDP request to the server, trigger an off-by-one error and crash it.

2) Out-of-bounds read (CVE-ID: CVE-2022-45909)

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

The vulnerability exists due to heap-based buffer over-read when processing a long Request-URI in an INVITE request. A remote attacker can send a specially crafted request to the server and perform a denial of service attack.


Remediation

Install update from vendor's website.

References