Vulnerability Details : CVE-2016-4556
Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2016-4556
- cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*
- cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- 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:a:squid-cache:squid:3.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.0:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.14:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.20:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.21:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.18:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.19:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.15:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.16:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.17:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.19:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.22:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.17:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.10:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.11:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.12:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.13:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.14:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.16:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.5.15:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.3.14:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.14:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.12.3:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.12.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.4.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:3.1.12.1:*:*:*:*:*:*:*
Threat overview for CVE-2016-4556
Top countries where our scanners detected CVE-2016-4556
Top open port discovered on systems with this issue
80
IPs affected by CVE-2016-4556 261,403
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2016-4556!
*Directly or indirectly through your vendors, service providers and 3rd parties.
Powered by
attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2016-4556
5.74%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 93 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4556
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2016-4556
-
http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_9.patch
Patch
-
http://www.debian.org/security/2016/dsa-3625
Debian -- Security Information -- DSA-3625-1 squid3
-
https://access.redhat.com/errata/RHSA-2016:1139
RHSA-2016:1139 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/errata/RHSA-2016:1140
RHSA-2016:1140 - Security Advisory - Red Hat Customer Portal
-
http://www.ubuntu.com/usn/USN-2995-1
USN-2995-1: Squid vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
[security-announce] SUSE-SU-2016:2089-1: important: Security update for
-
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
openSUSE-SU-2016:2081-1: moderate: Security update for squid
-
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Oracle Linux Bulletin - April 2016Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/05/06/5
oss-security - Re: CVE Request: Squid HTTP caching proxyRelease Notes;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
[security-announce] SUSE-SU-2016:1996-1: important: Security update for
-
https://access.redhat.com/errata/RHSA-2016:1138
RHSA-2016:1138 - Security Advisory - Red Hat Customer Portal
-
http://www.openwall.com/lists/oss-security/2016/05/06/3
oss-security - CVE Request: Squid HTTP caching proxyThird Party Advisory
-
http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_9.patch
-
https://security.gentoo.org/glsa/201607-01
Squid: Multiple vulnerabilities (GLSA 201607-01) — Gentoo security
-
http://www.securitytracker.com/id/1035770
Squid ESI Response Processing Bugs Let Remote Users Deny Service - SecurityTrackerThird Party Advisory
-
http://www.squid-cache.org/Advisories/SQUID-2016_9.txt
Vendor Advisory
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