CVE-2019-1549: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-xmjp-8ccm-cf6h
CVSS 5.3
CWE-330
Published
Advisory Summary

CVE-2019-1549 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-330: Use of Insufficiently Random Values) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.. Remediation is available in the latest vendor maintenance releases.

CVE-2019-1549 at a Glance

CVE Identifier CVE-2019-1549
GHSA Identifier GHSA-xmjp-8ccm-cf6h
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-330: Use of Insufficiently Random Values
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2019-1549

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-1549, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-330: Use of Insufficiently Random Values, where the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).

References

NVD — CVE-2019-1549 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1549
Software Security Information SECURITY
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Software Security Information SECURITY
https://www.oracle.com/security-alerts/cpuoct2020.html
Software Security Information SECURITY
https://www.oracle.com/security-alerts/cpujul2020.html
Software Security Information SECURITY
https://www.oracle.com/security-alerts/cpujan2020.html
Software Security Information SECURITY
https://www.oracle.com/security-alerts/cpuapr2020.html
www.openssl.org/news/secadv/2019091... WEB
https://www.openssl.org/news/secadv/20190910.txt
Software Security Information SECURITY
https://www.debian.org/security/2019/dsa-4539
usn.ubuntu.com/4376-1 WEB
https://usn.ubuntu.com/4376-1
support.f5.com/csp/article/k440702... WEB
https://support.f5.com/csp/article/K44070243?utm_source=f5support&utm_medium=RSS
support.f5.com/csp/article/k440702... WEB
https://support.f5.com/csp/article/K44070243?utm_source=f5support&amp%3Butm_medium=RSS
support.f5.com/csp/article/k440702... WEB
https://support.f5.com/csp/article/K44070243
Software Security Information SECURITY
https://security.netapp.com/advisory/ntap-20190919-0002
seclists.org/bugtraq/2019/oct/1 WEB
https://seclists.org/bugtraq/2019/Oct/1
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A
git.openssl.org/gitweb/ WEB
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be
git.openssl.org/gitweb/ WEB
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be

Frequently Asked Questions

What is CVE-2019-1549?
CVE-2019-1549 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-330: Use of Insufficiently Random Values.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2019-1549?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2019-1549?
CVE-2019-1549 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2019-1549?
CVE-2019-1549 is classified under CWE-330: Use of Insufficiently Random Values (The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.).
How can I check Maven dependencies for CVE-2019-1549?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xmjp-8ccm-cf6h",
  "modified" : "2024-04-04T01:55:02Z",
  "published" : "2022-05-24T16:55:53Z",
  "aliases" : [ "CVE-2019-1549" ],
  "details" : "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1549"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuoct2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpujul2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpujan2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuapr2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.openssl.org/news/secadv/20190910.txt"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2019/dsa-4539"
  }, {
    "type" : "WEB",
    "url" : "https://usn.ubuntu.com/4376-1"
  }, {
    "type" : "WEB",
    "url" : "https://support.f5.com/csp/article/K44070243?utm_source=f5support&utm_medium=RSS"
  }, {
    "type" : "WEB",
    "url" : "https://support.f5.com/csp/article/K44070243?utm_source=f5support&amp%3Butm_medium=RSS"
  }, {
    "type" : "WEB",
    "url" : "https://support.f5.com/csp/article/K44070243"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20190919-0002"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/bugtraq/2019/Oct/1"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A"
  }, {
    "type" : "WEB",
    "url" : "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be"
  }, {
    "type" : "WEB",
    "url" : "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-330" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2019-09-10T17:15:00Z"
  }
}