CVE-2019-15846: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-f368-8x8g-4m4v
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Advisory Summary

CVE-2019-15846 is a CRITICAL security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2019-15846 at a Glance

CVE Identifier CVE-2019-15846
GHSA Identifier GHSA-f368-8x8g-4m4v
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2019-15846

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-2019-15846, 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 General Security Weakness. 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

Exim before 4.92.2 allows remote attackers to execute arbitrary code as root via a trailing backslash.

References

NVD — CVE-2019-15846 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-15846
Software Security Information SECURITY
https://exim.org/static/doc/security/CVE-2019-15846.txt
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2019/09/msg00004.html
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FT3GY7V7SR2RHKNZNQCGXFWUSILVSZNU
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDF37AUNETIOXY6ZLQAUBGBVUTMMV242
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SBNHDAF74RI6VK2JVSEIE3VYNL7JJDYM
seclists.org/bugtraq/2019/sep/13 WEB
https://seclists.org/bugtraq/2019/Sep/13
Software Security Information SECURITY
https://security.gentoo.org/glsa/201909-06
usn.ubuntu.com/4124-1 WEB
https://usn.ubuntu.com/4124-1
usn.ubuntu.com/4124-2 WEB
https://usn.ubuntu.com/4124-2
Software Security Information SECURITY
https://www.debian.org/security/2019/dsa-4517
www.kb.cert.org/vuls/id/672565 WEB
https://www.kb.cert.org/vuls/id/672565
Software Security Information SECURITY
https://www.openwall.com/lists/oss-security/2019/09/06/1
Software Security Information SECURITY
http://exim.org/static/doc/security/CVE-2019-15846.txt
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00024.html
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/06/2
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/06/4
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/06/5
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/06/6
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/06/8
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/07/1
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/07/2
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/08/1
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2019/09/09/1

Frequently Asked Questions

What is CVE-2019-15846?
CVE-2019-15846 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2019-15846?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2019-15846?
CVE-2019-15846 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2019-15846?
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
View Raw JSON 
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  "id" : "GHSA-f368-8x8g-4m4v",
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2019-09-06T11:15:00Z"
  }
}