CVE-2007-4771 Vulnerability Analysis & Exploit Details

CVE-2007-4771
Vulnerability Scoring

9.3
/10
Critical Threat

An extreme security risk, CVE-2007-4771 must be addressed immediately to prevent system compromise.

Attack Complexity Details

  • Attack Complexity: Medium
    Attack Complexity Analysis In Progress
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2007-4771 Details

Status: Modified

Last updated: 🕧 21 Nov 2024, 00:36 UTC
Originally published on: 🕛 29 Jan 2008, 00:00 UTC

Time between publication and last update: 6141 days

CVSS Release: version 2

CVE-2007-4771 Vulnerability Summary

CVE-2007-4771: Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information.

Assessing the Risk of CVE-2007-4771

Access Complexity Graph

The exploitability of CVE-2007-4771 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-2007-4771

Moderate complexity but no authentication required makes CVE-2007-4771 a potential risk.

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-2007-4771, 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-2007-4771, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2007-4771 does not compromise confidentiality.
  • Integrity: None
    CVE-2007-4771 does not impact data integrity.
  • Availability: None
    CVE-2007-4771 does not affect system availability.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 1.893% (probability of exploit)

EPSS Percentile: 88.49% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 11.510000000000005% of others.

CVE-2007-4771 References

External References

CWE Common Weakness Enumeration

CWE-399

Vulnerable Configurations

  • cpe:2.3:a:icu-project:international_components_for_unicode:1.3:*:*:*:*:*:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.3.1:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.3.1:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.3.1.1:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.3.1.1:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.4:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.4:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.4.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.4.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.4.1.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.4.1.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.4.1.2:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.4.1.2:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.4.2:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.4.2:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.5:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.5:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.6:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.6:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.7:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.7:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.8:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.8:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:1.8.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:1.8.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.0:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.0:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.0:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.0:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.0.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.0.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.0.2:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.0.2:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.2:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.2:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.2:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.2:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.4:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.4:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.4:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.4:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.6:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.6:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.6:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.6:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.6.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.6.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.6.1:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.6.1:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.6.2:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.6.2:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:2.8:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:2.8:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.0:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.0:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.0:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.0:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.2:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.2:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.2:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.2:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.2.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.2.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4.1:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4.1:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4.2:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4.2:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4.3:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4.3:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4.4:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4.4:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.4.5:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.4.5:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.6:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.6:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.6:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.6:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.6.1:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.6.1:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.8:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.8:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.8:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.8:*:*:*:*:java:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.8.1:*:*:*:*:c\/c\+\+:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.8.1:*:*:*:*:c\/c\+\+:*:*
  • cpe:2.3:a:icu-project:international_components_for_unicode:3.8.1:*:*:*:*:java:*:*
    cpe:2.3:a:icu-project:international_components_for_unicode:3.8.1:*:*:*:*:java:*:*

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