SB2023030816 - Multiple DoS vulnerabilities in Drachtio Server
Published: March 8, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Input validation error (CVE-ID: CVE-2022-47515)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
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. A remote attacker can send a long message in a TCP request to the server and perform a denial of service (DoS) attack.
2) Reachable Assertion (CVE-ID: CVE-2022-47516)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: 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
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within libsofia-sip-ua/tport/tport.c. A remote attacker can send a specially crafted UDP request to the server and perform a denial of service attack.
Remediation
Install update from vendor's website.
References
- https://github.com/drachtio/drachtio-server/issues/245
- https://github.com/drachtio/drachtio-server/commit/4cf9fe2c420b86c16442215d449d40be777c1911
- https://github.com/davehorton/sofia-sip/commit/13b2a135287caa2d67ac6cd5155626821e25b377
- https://github.com/drachtio/drachtio-server/issues/244
- https://lists.debian.org/debian-lts-announce/2023/02/msg00028.html