Chrony up to 1.31.0 Timestamp denial of service
https://www.ispeech.org/text.to.speech
| CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. |
Current Exploit Price (β)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. |
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. |
|---|---|---|
| 5.1 | $0-$5k | 5.55 |
A vulnerability classified as problematic was found in Chrony up to 1.31.0. Affected by this vulnerability is an unknown code block. The manipulation as part of a Timestamp leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. As an impact it is known to affect availability.
The weakness was shared 12/09/2019. This vulnerability is known as CVE-2015-1853 since 02/17/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 86978 (RHEL 7 : chrony (RHSA-2015:2241)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context local.
Upgrading to version 1.31.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (86978).
Name
VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: π
VulDB Reliability: π
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| π | π | π | π | π | π |
| π | π | π | π | π | π |
| π | π | π | π | π | π |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| unlock | unlock | unlock | unlock | unlock | unlock |
| unlock | unlock | unlock | unlock | unlock | unlock |
| unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: π
VulDB Temp Score: π
VulDB Reliability: π
Class: Denial of service (CWE-404)
Local: No
Remote: Yes
Availability: π
Status: Not defined
Price Prediction: π
Current Price Estimation: π
| 0-Day | unlock | unlock | unlock | unlock |
|---|---|---|---|---|
| Today | unlock | unlock | unlock | unlock |
Nessus ID: 86978
Nessus Name: RHEL 7 : chrony (RHSA-2015:2241)
Nessus File: π
Nessus Risk: π
Nessus Family: π
Nessus Context: π
OpenVAS ID: 103435
OpenVAS Name: RedHat Update for chrony RHSA-2015:2241-03
OpenVAS File: π
OpenVAS Family: π
Threat Intelligence
Threat: π
Adversaries: π
Geopolitics: π
Economy: π
Predictions: π
Remediation: πRecommended: Upgrade
Status: π
0-Day Time: π
Upgrade: Chrony 1.31.1
02/17/2015 CVE assigned
11/19/2015 Countermeasure disclosed
11/20/2015 Nessus plugin released
12/09/2019 Advisory disclosed
12/10/2019 VulDB entry created
12/10/2019 VulDB last update
CVE: CVE-2015-1853 (π)
OVAL: πCreated: 12/10/2019 08:43 AM
Complete: π
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