CVE-2017-14970 Vulnerability Analysis & Exploit Details

CVE-2017-14970
Vulnerability Scoring

5.9
/10
Significant Risk

Security assessments indicate that CVE-2017-14970 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2017-14970 Details

Status: Modified

Last updated: 🕒 21 Nov 2024, 03:13 UTC
Originally published on: 🕐 02 Oct 2017, 01:29 UTC

Time between publication and last update: 2607 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2017-14970 Vulnerability Summary

CVE-2017-14970: In lib/ofp-util.c in Open vSwitch (OvS) before 2.8.1, there are multiple memory leaks while parsing malformed OpenFlow group mod messages. NOTE: the vendor disputes the relevance of this report, stating "it can only be triggered by an OpenFlow controller, but OpenFlow controllers have much more direct and powerful ways to force Open vSwitch to allocate memory, such as by inserting flows into the flow table."

Assessing the Risk of CVE-2017-14970

Access Complexity Graph

The exploitability of CVE-2017-14970 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2017-14970

CVE-2017-14970 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2017-14970, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2017-14970, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2017-14970 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2017-14970 poses no threat to data integrity.
  • Availability: High
    CVE-2017-14970 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.114% (probability of exploit)

EPSS Percentile: 46.67% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 53.33% of others.

CVE-2017-14970 References

External References

CWE Common Weakness Enumeration

CWE-772

CAPEC Common Attack Pattern Enumeration and Classification

  • HTTP DoS CAPEC-469 An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.

Vulnerable Configurations

  • cpe:2.3:a:openvswitch:openvswitch:1.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.9.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.9.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:1.11.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:1.11.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.3:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.3:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.4:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.4:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.5:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.5:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.6:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.6:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.7:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.7:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.8:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.8:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.9:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.9:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.10:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.10:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.11:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.11:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.5.12:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.5.12:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.3:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.3:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.4:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.4:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.5:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.5:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.6:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.6:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.7:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.7:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.8:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.8:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.9:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.9:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.6.10:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.6.10:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.1:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.1:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.2:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.2:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.3:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.3:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.4:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.4:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.5:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.5:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.6:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.6:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.7:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.7:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.9:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.9:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.10:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.10:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.11:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.11:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.12:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.12:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.7.13:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.7.13:*:*:*:*:*:*:*
  • cpe:2.3:a:openvswitch:openvswitch:2.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:openvswitch:openvswitch:2.8.0:*:*:*:*:*:*:*

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