Vulnerability Name:

CVE-2010-0294 (CCN-56126)

Assigned:2010-02-04
Published:2010-02-04
Updated:2010-02-09
Summary:chronyd in Chrony before 1.23.1, and possibly 1.24-pre1, generates a syslog message for each unauthorized cmdmon packet, which allows remote attackers to cause a denial of service (disk consumption) via a large number of invalid packets.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-399
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: Chrony Web site
Chrony News: 4 February 2010: Security Advisory

Source: CONFIRM
Type: Patch, Vendor Advisory
http://chrony.tuxfamily.org/News.html

Source: MITRE
Type: CNA
CVE-2010-0294

Source: CONFIRM
Type: UNKNOWN
http://git.tuxfamily.org/chrony/chrony.git/?p=gitroot/chrony/chrony.git;a=commit;h=0b710499f994823bd938fc6895f097eefb9cc59f

Source: CCN
Type: SA38428
Chrony Denial of Service Security Issue and Vulnerability

Source: SECUNIA
Type: Vendor Advisory
38428

Source: SECUNIA
Type: Vendor Advisory
38480

Source: DEBIAN
Type: UNKNOWN
DSA-1992

Source: DEBIAN
Type: DSA-1992
chrony -- several vulnerabilities

Source: CCN
Type: OSVDB ID: 62143
Chrony chronyd Log Message Limit Weakness Disk Consumption DoS

Source: BID
Type: Patch
38106

Source: CCN
Type: BID-38106
Chrony 1.23 and Prior Multiple Remote Denial of Service Vulnerabilities

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=555367

Source: XF
Type: UNKNOWN
chrony-logmessages-dos(56126)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:tuxfamily:chrony:1.18:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.19:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.19-1:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.19.99.1:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.19.99.2:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.19.99.3:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.20:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.21:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:1.21-pre1:*:*:*:*:*:*:*
  • OR cpe:/a:tuxfamily:chrony:*:*:*:*:*:*:*:* (Version <= 1.23-pre1)
  • OR cpe:/a:tuxfamily:chrony:1.24-pre1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.mitre.oval:def:7310
    P
    		DSA-1992 chrony -- several vulnerabilities
    2014-06-23
    oval:org.mitre.oval:def:12783
    P
    		DSA-1992-1 chrony -- several
    2014-06-23
    oval:org.debian:def:1992
    V
    		several vulnerabilities
    2010-02-04
    BACK
    tuxfamily chrony 1.18
    tuxfamily chrony 1.19
    tuxfamily chrony 1.19-1
    tuxfamily chrony 1.19.99.1
    tuxfamily chrony 1.19.99.2
    tuxfamily chrony 1.19.99.3
    tuxfamily chrony 1.20
    tuxfamily chrony 1.21
    tuxfamily chrony 1.21-pre1
    tuxfamily chrony *
    tuxfamily chrony 1.24-pre1