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9.8
CRITICAL CVSS 3.0
CVE-2016-7167
"libcurl Integer Overflow Vulnerability"
Description

Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl before 7.50.3 allow attackers to have unspecified impact via a string of length 0xffffffff, which triggers a heap-based buffer overflow.

INFO

Published Date :

Oct. 7, 2016, 2:59 p.m.

Last Modified :

April 12, 2025, 10:46 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2016-7167 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 Haxx curl
2 Haxx libcurl
1 Fedoraproject fedora
: Total Affected Vendor : 2 | Products : 3
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.0 CRITICAL [email protected]
Solution
This vulnerability is addressed by upgrading the curl and libcurl packages.
  • Update curl and libcurl packages to a patched version.
  • Apply available vendor security updates for your OS.
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-2016-7167.

URL Resource
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/92975 Broken Link
http://www.securitytracker.com/id/1036813 Third Party Advisory VDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2016
https://access.redhat.com/errata/RHSA-2018:2486
https://access.redhat.com/errata/RHSA-2018:3558
https://curl.haxx.se/docs/adv_20160914.html Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/
https://security.gentoo.org/glsa/201701-47
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/92975 Broken Link
http://www.securitytracker.com/id/1036813 Third Party Advisory VDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2016
https://access.redhat.com/errata/RHSA-2018:2486
https://access.redhat.com/errata/RHSA-2018:3558
https://curl.haxx.se/docs/adv_20160914.html Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/
https://security.gentoo.org/glsa/201701-47
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-7167 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-2016-7167 weaknesses.

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-2016-7167 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2016-7167 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
    Added Reference http://www.securityfocus.com/bid/92975
    Added Reference http://www.securitytracker.com/id/1036813
    Added Reference http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632
    Added Reference https://access.redhat.com/errata/RHSA-2017:2016
    Added Reference https://access.redhat.com/errata/RHSA-2018:2486
    Added Reference https://access.redhat.com/errata/RHSA-2018:3558
    Added Reference https://curl.haxx.se/docs/adv_20160914.html
    Added Reference https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/
    Added Reference https://security.gentoo.org/glsa/201701-47
  • 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 MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/
  • 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]
  • CVE Modified by [email protected]

    Nov. 07, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html [No Types Assigned]
  • 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]

    Aug. 17, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2018:2486 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2017:2016 [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 Translated by [email protected]

    Oct. 12, 2016

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

    Oct. 11, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:haxx:libcurl:7.50.2:*:*:*:*:*:*:* (and previous)
    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 https://lists.fedoraproject.org/archives/list/[email protected]/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/ Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/92975 No Types Assigned http://www.securityfocus.com/bid/92975 Broken Link
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/ Third Party Advisory
    Changed Reference Type https://curl.haxx.se/docs/adv_20160914.html No Types Assigned https://curl.haxx.se/docs/adv_20160914.html Vendor Advisory
    Changed Reference Type http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 No Types Assigned http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 Third Party Advisory
    Changed Reference Type http://www.securitytracker.com/id/1036813 No Types Assigned http://www.securitytracker.com/id/1036813 Third Party Advisory, VDB Entry
    Added CWE CWE-190
  • Initial Analysis by [email protected]

    Oct. 07, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR Configuration 1 OR *cpe:2.3:a:haxx:libcurl:7.50.2:*:*:*:*:*:*:* (and previous) Configuration 2 OR *cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
    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 https://lists.fedoraproject.org/archives/list/[email protected]/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/B3IU2FRXQNU6UJIQT4NGLWWTP2GJQXO7/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/LTH54DFOS4TSYPG5XKJDGAG4XPAR4T7M/ Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/92975 No Types Assigned http://www.securityfocus.com/bid/92975 Broken Link
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ZMRWVISG7VUCYRMF23A2UHMYD72VQWAK/ Third Party Advisory
    Changed Reference Type https://curl.haxx.se/docs/adv_20160914.html No Types Assigned https://curl.haxx.se/docs/adv_20160914.html Vendor Advisory
    Changed Reference Type http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 No Types Assigned http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 Third Party Advisory
    Changed Reference Type http://www.securitytracker.com/id/1036813 No Types Assigned http://www.securitytracker.com/id/1036813 Third Party Advisory, VDB Entry
    Added CWE CWE-119
    Added CWE CWE-190
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.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

2.21 }} -0.19%

score

0.83797

percentile