8.1
HIGH
CVE-2016-5421
Curl Use-after-free Arbitrary Connection Handling
Description

Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.

INFO

Published Date :

Aug. 10, 2016, 2:59 p.m.

Last Modified :

Nov. 7, 2023, 2:33 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2016-5421 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Opensuse leap
2 Opensuse opensuse
1 Haxx curl
2 Haxx libcurl
1 Canonical ubuntu_linux
1 Fedoraproject fedora
1 Debian debian_linux
: Total Affected Vendor : 5 | Products : 7
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2016-5421.

URL Resource
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3638 Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html Patch Third Party Advisory
http://www.securityfocus.com/bid/92306 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036536 Third Party Advisory VDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059 Third Party Advisory
http://www.ubuntu.com/usn/USN-3048-1 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3558 Third Party Advisory
https://curl.haxx.se/docs/adv_20160803C.html Mitigation Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
https://security.gentoo.org/glsa/201701-47 Third Party Advisory
https://source.android.com/security/bulletin/2016-12-01.html Third Party Advisory
https://www.tenable.com/security/tns-2016-18 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-5421 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-5421 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/ [No types assigned]
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/ [No types assigned]
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
  • Modified Analysis by [email protected]

    May. 08, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html Third Party Advisory
    Changed Reference Type http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html No Types Assigned http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html Patch, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/92306 No Types Assigned http://www.securityfocus.com/bid/92306 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.securitytracker.com/id/1036536 No Types Assigned http://www.securitytracker.com/id/1036536 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059 No Types Assigned http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059 Third Party Advisory
    Changed Reference Type http://www.ubuntu.com/usn/USN-3048-1 No Types Assigned http://www.ubuntu.com/usn/USN-3048-1 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3558 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3558 Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/ Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/201701-47 No Types Assigned https://security.gentoo.org/glsa/201701-47 Third Party Advisory
    Changed Reference Type https://source.android.com/security/bulletin/2016-12-01.html No Types Assigned https://source.android.com/security/bulletin/2016-12-01.html Third Party Advisory
    Changed Reference Type https://www.tenable.com/security/tns-2016-18 No Types Assigned https://www.tenable.com/security/tns-2016-18 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 13, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:3558 [No Types Assigned]
  • CPE Deprecation Remap by [email protected]

    Oct. 30, 2018

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:novell:leap:42.1:*:*:*:*:*:*:* OR *cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 17, 2018

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 01, 2017

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201701-47 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 01, 2017

    Action Type Old Value New Value
    Added Reference https://www.tenable.com/security/tns-2016-18 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 20, 2017

    Action Type Old Value New Value
    Added Reference https://source.android.com/security/bulletin/2016-12-01.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/ [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/92306 [No Types Assigned]
    Added Reference http://www.securitytracker.com/id/1036536 [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/ [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-3048-1 [No Types Assigned]
    Added Reference http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059 [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 06, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:haxx:libcurl:7.50.0:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:novell:leap:42.1:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:haxx:libcurl:7.50.0:*:*:*:*:*:*:* (and previous) Configuration 3 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
    Changed Reference Type http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html Third Party Advisory
  • Initial Analysis by [email protected]

    Oct. 06, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:haxx:libcurl:7.50.0:*:*:*:*:*:*:* (and previous) Configuration 1 OR *cpe:2.3:o:novell:leap:42.1:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:a:haxx:libcurl:7.50.0:*:*:*:*:*:*:* (and previous)
    Changed Reference Type http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 05, 2016

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
  • Modified Analysis by [email protected]

    Aug. 12, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:haxx:libcurl:7.50.0:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.debian.org/security/2016/dsa-3638 No Types Assigned http://www.debian.org/security/2016/dsa-3638 Third Party Advisory
    Changed Reference Type https://curl.haxx.se/docs/adv_20160803C.html No Types Assigned https://curl.haxx.se/docs/adv_20160803C.html Mitigation, Vendor Advisory
    Added CWE CWE-416
  • Initial Analysis by [email protected]

    Aug. 11, 2016

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-5421 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2016-5421 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.84 }} 0.11%

score

0.82461

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: