CVE-2016-2545: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-x3xw-8fvc-gxxx
Share
CVSS 5.1
CWE-362
Published
Advisory Summary

CVE-2016-2545 is a MODERATE (CVSS 5.1) security vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.. Remediation is available in the latest vendor maintenance releases.

CVE-2016-2545 at a Glance

CVE Identifier CVE-2016-2545
GHSA Identifier GHSA-x3xw-8fvc-gxxx
Severity MODERATE
CVSS v3.1 Base Score 5.1
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

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

How to Fix CVE-2016-2545

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-2016-2545, 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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

The snd_timer_interrupt function in sound/core/timer.c in the Linux kernel before 4.4.1 does not properly maintain a certain linked list, which allows local users to cause a denial of service (race condition and system crash) via a crafted ioctl call.

References

NVD — CVE-2016-2545 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2545
Security Fix Commit FIX COMMIT
https://github.com/torvalds/linux/commit/ee8413b01045c74340aa13ad5bdf905de32be736
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1311560
git.kernel.org/cgit/linux/kernel/g... WEB
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee8413b01045c74340aa13ad5bdf905de32be736
Software Security Information SECURITY
http://www.debian.org/security/2016/dsa-3503
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
Software Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
www.kernel.org/pub/linux/kernel/v4... WEB
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
Software Security Information SECURITY
http://www.openwall.com/lists/oss-security/2016/01/19/1
Software Security Information SECURITY
http://www.securityfocus.com/bid/83381
Software Security Information SECURITY
http://www.securitytracker.com/id/1035296
www.ubuntu.com/usn/usn-2929-1 WEB
http://www.ubuntu.com/usn/USN-2929-1
www.ubuntu.com/usn/usn-2929-2 WEB
http://www.ubuntu.com/usn/USN-2929-2
www.ubuntu.com/usn/usn-2930-1 WEB
http://www.ubuntu.com/usn/USN-2930-1
www.ubuntu.com/usn/usn-2930-2 WEB
http://www.ubuntu.com/usn/USN-2930-2
www.ubuntu.com/usn/usn-2930-3 WEB
http://www.ubuntu.com/usn/USN-2930-3
www.ubuntu.com/usn/usn-2931-1 WEB
http://www.ubuntu.com/usn/USN-2931-1
www.ubuntu.com/usn/usn-2932-1 WEB
http://www.ubuntu.com/usn/USN-2932-1
www.ubuntu.com/usn/usn-2967-1 WEB
http://www.ubuntu.com/usn/USN-2967-1
www.ubuntu.com/usn/usn-2967-2 WEB
http://www.ubuntu.com/usn/USN-2967-2

Frequently Asked Questions

What is CVE-2016-2545?
CVE-2016-2545 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2016-2545?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2016-2545?
CVE-2016-2545 has a CVSS v3.1 base score of 5.1 (MODERATE) with vector string CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2016-2545?
CVE-2016-2545 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check Maven dependencies for CVE-2016-2545?
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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  "aliases" : [ "CVE-2016-2545" ],
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    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "http://www.ubuntu.com/usn/USN-2931-1"
  }, {
    "type" : "WEB",
    "url" : "http://www.ubuntu.com/usn/USN-2932-1"
  }, {
    "type" : "WEB",
    "url" : "http://www.ubuntu.com/usn/USN-2967-1"
  }, {
    "type" : "WEB",
    "url" : "http://www.ubuntu.com/usn/USN-2967-2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2016-04-27T17:59:00Z"
  }
}