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Security Advisories: GSA_kwCzR0hTQS01cjVoLXE5MzQtY2NjcM4AA29C

Calico Typha denial of service vulnerability

In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.

Permalink: https://github.com/advisories/GHSA-5r5h-q934-cccp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS01cjVoLXE5MzQtY2NjcM4AA29C
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 1 year ago
Updated: about 1 year ago


CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Percentage: 0.00077
EPSS Percentile: 0.34522

Identifiers: GHSA-5r5h-q934-cccp, CVE-2023-41378
References: Repository: https://github.com/projectcalico/calico
Blast Radius: 6.3

Affected Packages

go:github.com/projectcalico/calico
Dependent packages: 5
Dependent repositories: 7
Downloads:
Affected Version Ranges: <= 3.25.1, >= 3.26.0, < 3.26.3
Fixed in: , 3.26.3
All affected versions: 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 2.6.7, 2.6.8, 2.6.9, 2.6.10, 2.6.11, 2.6.12, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.3.6, 3.3.7, 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.5.5, 3.5.6, 3.5.7, 3.5.8, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.8.0, 3.8.1, 3.8.2, 3.8.3, 3.8.4, 3.8.5, 3.8.6, 3.8.7, 3.8.8, 3.8.9, 3.9.0, 3.9.1, 3.9.2, 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.10.0, 3.10.1, 3.10.2, 3.10.3, 3.10.4, 3.11.0, 3.11.1, 3.11.2, 3.11.3, 3.12.0, 3.12.1, 3.12.2, 3.12.3, 3.13.0, 3.13.1, 3.13.3, 3.13.4, 3.14.0, 3.14.1, 3.15.0, 3.15.1, 3.15.2, 3.15.3, 3.15.4, 3.15.5, 3.16.0, 3.16.1, 3.16.2, 3.16.3, 3.16.4, 3.16.5, 3.16.6, 3.16.7, 3.16.8, 3.16.9, 3.16.10, 3.17.0, 3.17.1, 3.17.2, 3.17.3, 3.17.4, 3.17.5, 3.17.6, 3.18.0, 3.18.1, 3.18.2, 3.18.3, 3.18.4, 3.18.5, 3.18.6, 3.19.0, 3.19.1, 3.19.2, 3.19.3, 3.19.4, 3.20.0, 3.20.1, 3.20.2, 3.20.3, 3.21.0, 3.21.1
All unaffected versions: