Main Vulnerability Database Vulnerabilities #VU49128

Resource exhaustion in postsrsd - CVE-2020-35573

Published: December 23, 2020

Vulnerability identifier: #VU49128

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2020-35573

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

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

srs2.c in PostSRSd before 1.10 allows remote attackers to cause a denial of service (CPU consumption) via a long timestamp tag in an SRS address.

postsrsd
Gentoo Linux
Ubuntu
postsrsd (Alpine package)
postsrsd (Ubuntu package)

Install update from vendor's website.

postsrsd - update to 1.1
postsrsd (Alpine package) - update to 1.6-r4
postsrsd (Ubuntu package) - update to 1.4-1ubuntu0.1