Vulnerability Name:

CVE-2015-1822 (CCN-102677)

Assigned:2015-02-17
Published:2015-02-17
Updated:2023-02-13
Summary:chrony before 1.31.1 does not initialize the last "next" pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests.
CVSS v3 Severity:3.5 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
4.8 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)
3.0 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
6.0 Medium (REDHAT CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P)
4.4 Medium (REDHAT Temporal CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-456
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-1822

Source: CCN
Type: Chrony announce Archives [04-07-2015]
[chrony-announce] chrony-1.31.1 released (security)

Source: secalert@redhat.com
Type: Patch, Vendor Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: BID-73956
Chrony CVE-2015-1822 Memory Corruption Vulnerability

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: XF
Type: UNKNOWN
chrony-cve20151822-dos(102677)

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: Debian Security Advisory [04-12-2015]
DSA-3222-1 chrony -- security update

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-1822

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*
    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.cisecurity:def:141
    P
    		DSA-3222-1 -- chrony -- security update
    2016-02-08
    oval:com.redhat.rhsa:def:20152241
    P
    		RHSA-2015:2241: chrony security, bug fix, and enhancement update (Moderate)
    2015-11-19
    oval:com.ubuntu.precise:def:20151822000
    V
    		CVE-2015-1822 on Ubuntu 12.04 LTS (precise) - medium.
    2015-04-16
    oval:com.ubuntu.cosmic:def:201518220000000
    V
    		CVE-2015-1822 on Ubuntu 18.10 (cosmic) - medium.
    2015-04-16
    oval:com.ubuntu.artful:def:20151822000
    V
    		CVE-2015-1822 on Ubuntu 17.10 (artful) - medium.
    2015-04-16
    oval:com.ubuntu.trusty:def:20151822000
    V
    		CVE-2015-1822 on Ubuntu 14.04 LTS (trusty) - medium.
    2015-04-16
    oval:com.ubuntu.bionic:def:201518220000000
    V
    		CVE-2015-1822 on Ubuntu 18.04 LTS (bionic) - medium.
    2015-04-16
    oval:com.ubuntu.bionic:def:20151822000
    V
    		CVE-2015-1822 on Ubuntu 18.04 LTS (bionic) - medium.
    2015-04-16
    oval:com.ubuntu.xenial:def:20151822000
    V
    		CVE-2015-1822 on Ubuntu 16.04 LTS (xenial) - medium.
    2015-04-16
    oval:com.ubuntu.xenial:def:201518220000000
    V
    		CVE-2015-1822 on Ubuntu 16.04 LTS (xenial) - medium.
    2015-04-16
    oval:com.ubuntu.cosmic:def:20151822000
    V
    		CVE-2015-1822 on Ubuntu 18.10 (cosmic) - medium.
    2015-04-16
    BACK