CVE-2023-38200
published 2023-07-24CVE-2023-38200: A flaw was found in Keylime. Due to their blocking nature, the Keylime registrar is subject to a remote denial of service against its SSL connections. This…
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.44%
70.2th percentile
A flaw was found in Keylime. Due to their blocking nature, the Keylime registrar is subject to a remote denial of service against its SSL connections. This flaw allows an attacker to exhaust all available connections.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fedoraproject | fedora | — | — |
| keylime | keylime | >= 0 < 7.4.0 | 7.4.0 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux_eus | — | — |
| redhat | enterprise_linux_for_ibm_z_systems | — | — |
| redhat | enterprise_linux_for_ibm_z_systems_eus | — | — |
| redhat | enterprise_linux_for_power_little_endian | — | — |
| redhat | enterprise_linux_for_power_little_endian_eus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_redhat7.5HIGH
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Red Hat
keylime: registrar is subject to a DoS against SSL connections
vendor_redhat·2023-07-12·CVSS 7.5
CVE-2023-38200 [HIGH] CWE-400 keylime: registrar is subject to a DoS against SSL connections
keylime: registrar is subject to a DoS against SSL connections
A flaw was found in Keylime. Due to their blocking nature, the Keylime registrar is subject to a remote denial of service against its SSL connections. This flaw allows an attacker to exhaust all available connections.
A flaw was found in Keylime. Due to their blocking nature, the Keylime registrar is subject to a remote denial of service against its SSL connections. This flaw allows an attacker to exhaust all available connections.
GHSA
Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
ghsa·2023-08-01
CVE-2023-38200 [HIGH] CWE-834 Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
### Impact
Keylime `registrar` is prone to a simple denial of service attack in which an adversary opens a connection to the TLS port (by default, port `8891`) blocking further, legitimate connections. As long as the connection is open, the `registrar` is blocked and cannot serve any further clients (`agents` and `tenants`), which prevents normal operation. The problem does not affect the `verifier`.
### Patches
Users should upgrade to release 7.4.0
OSV
Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
osv·2023-08-01
CVE-2023-38200 [HIGH] Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
### Impact
Keylime `registrar` is prone to a simple denial of service attack in which an adversary opens a connection to the TLS port (by default, port `8891`) blocking further, legitimate connections. As long as the connection is open, the `registrar` is blocked and cannot serve any further clients (`agents` and `tenants`), which prevents normal operation. The problem does not affect the `verifier`.
### Patches
Users should upgrade to release 7.4.0
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/errata/RHSA-2023:5080https://access.redhat.com/security/cve/CVE-2023-38200https://bugzilla.redhat.com/show_bug.cgi?id=2222692https://github.com/keylime/keylime/pull/1421https://access.redhat.com/errata/RHSA-2023:5080https://access.redhat.com/security/cve/CVE-2023-38200https://bugzilla.redhat.com/show_bug.cgi?id=2222692https://github.com/keylime/keylime/pull/1421https://lists.fedoraproject.org/archives/list/[email protected]/message/ZIZZB5NHNCS5D2AEH3ZAO6OQC72IK7WS/
2023-07-24
Published