7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
21.4%
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.
CPE | Name | Operator | Version |
---|---|---|---|
github.com/projectcalico/calico | le | 3.25.1 | |
github.com/projectcalico/calico | lt | 3.26.3 |
github.com/advisories/GHSA-5r5h-q934-cccp
github.com/projectcalico/calico/commit/2ebc1f92ecc39332cf1d55ba676d9101af24982f
github.com/projectcalico/calico/commit/ad8bd001e650ec7742ac30e58247e7eef5956125
github.com/projectcalico/calico/pull/7908
github.com/projectcalico/calico/pull/7993
nvd.nist.gov/vuln/detail/CVE-2023-41378
www.tigera.io/security-bulletins-tta-2023-001/
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
21.4%