CVE-2014-0021
published 2019-11-15CVE-2014-0021: Chrony before 1.29.1 has traffic amplification in cmdmon protocol
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
3.80%
88.8th percentile
Chrony before 1.29.1 has traffic amplification in cmdmon protocol
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrony | chrony | — | — |
| chrony_project | chrony | < 1.29 | 1.29 |
| debian | chrony | < chrony 1.29.1-1 (bookworm) | chrony 1.29.1-1 (bookworm) |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| tuxfamily | chrony | >= 0 < 1.29.1-1 | 1.29.1-1 |
| tuxfamily | chrony | >= 0 < 1.29.1-1 | 1.29.1-1 |
| tuxfamily | chrony | >= 0 < 1.29.1-1 | 1.29.1-1 |
| tuxfamily | chrony | >= 0 < 1.29.1-1 | 1.29.1-1 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5LOW
vendor_redhat7.5HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
chrony: DDoS via amplification in cmdmon protocol
vendor_redhat·2014-01-16·CVSS 7.5
CVE-2014-0021 [HIGH] chrony: DDoS via amplification in cmdmon protocol
chrony: DDoS via amplification in cmdmon protocol
Chrony before 1.29.1 has traffic amplification in cmdmon protocol
Package: chrony (Red Hat Enterprise Linux 7) - Affected
Debian
CVE-2014-0021: chrony - Chrony before 1.29.1 has traffic amplification in cmdmon protocol
vendor_debian·2014·CVSS 7.5
CVE-2014-0021 [HIGH] CVE-2014-0021: chrony - Chrony before 1.29.1 has traffic amplification in cmdmon protocol
Chrony before 1.29.1 has traffic amplification in cmdmon protocol
Scope: local
bookworm: resolved (fixed in 1.29.1-1)
bullseye: resolved (fixed in 1.29.1-1)
forky: resolved (fixed in 1.29.1-1)
sid: resolved (fixed in 1.29.1-1)
trixie: resolved (fixed in 1.29.1-1)
GHSA
GHSA-4xjv-r88q-f87j: Chrony before 1
ghsa_unreviewed·2022-05-17
CVE-2014-0021 [HIGH] GHSA-4xjv-r88q-f87j: Chrony before 1
Chrony before 1.29.1 has traffic amplification in cmdmon protocol
OSV
CVE-2014-0021: Chrony before 1
osv·2019-11-15·CVSS 7.5
CVE-2014-0021 [HIGH] CVE-2014-0021: Chrony before 1
Chrony before 1.29.1 has traffic amplification in cmdmon protocol
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol [epel-all]
bugzilla·2014-02-05·CVSS 7.5
CVE-2014-0021 [HIGH] CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol [epel-all]
CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When creating a Bodhi update request, please use the bodhi submission link
noted in the next comment(s). This will include the bug IDs of this
tracking bug as well as the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
Bodhi notes field when available.
Please note: this issue a
Bugzilla
CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol [fedora-all]
bugzilla·2014-01-17·CVSS 7.5
CVE-2014-0021 [HIGH] CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol [fedora-all]
CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When creating a Bodhi update request, please use the bodhi submission link
noted in the next comment(s). This will include the bug IDs of this
tracking bug as well as the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
Bodhi notes field when available.
Please note: this issue affe
Bugzilla
CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol
bugzilla·2014-01-17·CVSS 7.5
CVE-2014-0021 [HIGH] CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol
CVE-2014-0021 chrony: DDoS via amplification in cmdmon protocol
Miroslav Lichvar from Red Hat reports that the cmdmon protocol implemented in chrony was found to be vulnerable to DDoS attacks using traffic amplification. By default, commands are allowed only from localhost, but it's possible to configure chronyd to allow commands from any address. This could allow a remote attacker to cause a DoS, which could cause excessive resource usage.
Discussion:
Acknowledgement:
This issue was discovered by Miroslav Lichvar of Red Hat.
---
This has been discussed upstream:
http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-dev/2014/01/msg00001.html
Miroslav, is it correct to state that EPEL would be affected by this (chrony 1.25)? I've not looked at any code, but I suspect this issu
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127837.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2014-February/128753.htmlhttp://www.openwall.com/lists/oss-security/2014/01/17/9http://www.openwall.com/lists/oss-security/2014/01/18/1http://www.openwall.com/lists/oss-security/2014/01/18/2http://www.openwall.com/lists/oss-security/2014/01/18/3http://www.openwall.com/lists/oss-security/2014/01/19/1http://www.securityfocus.com/bid/65035https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2014-0021https://exchange.xforce.ibmcloud.com/vulnerabilities/90925https://security-tracker.debian.org/tracker/CVE-2014-0021http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127837.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2014-February/128753.htmlhttp://www.openwall.com/lists/oss-security/2014/01/17/9http://www.openwall.com/lists/oss-security/2014/01/18/1http://www.openwall.com/lists/oss-security/2014/01/18/2http://www.openwall.com/lists/oss-security/2014/01/18/3http://www.openwall.com/lists/oss-security/2014/01/19/1http://www.securityfocus.com/bid/65035https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2014-0021https://exchange.xforce.ibmcloud.com/vulnerabilities/90925https://security-tracker.debian.org/tracker/CVE-2014-0021
2019-11-15
Published