CVE-2016-4556: Double Free
First published: Tue May 10 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Squid Web Proxy Cache | =3.0 | |
| Squid Web Proxy Cache | =3.1 | |
| Squid Web Proxy Cache | =3.1.0.1 | |
| Squid Web Proxy Cache | =3.1.0.2 | |
| Squid Web Proxy Cache | =3.1.0.3 | |
| Squid Web Proxy Cache | =3.1.0.4 | |
| Squid Web Proxy Cache | =3.1.0.5 | |
| Squid Web Proxy Cache | =3.1.0.6 | |
| Squid Web Proxy Cache | =3.1.0.7 | |
| Squid Web Proxy Cache | =3.1.0.8 | |
| Squid Web Proxy Cache | =3.1.0.9 | |
| Squid Web Proxy Cache | =3.1.0.10 | |
| Squid Web Proxy Cache | =3.1.0.11 | |
| Squid Web Proxy Cache | =3.1.0.12 | |
| Squid Web Proxy Cache | =3.1.0.13 | |
| Squid Web Proxy Cache | =3.1.0.14 | |
| Squid Web Proxy Cache | =3.1.0.15 | |
| Squid Web Proxy Cache | =3.1.0.16 | |
| Squid Web Proxy Cache | =3.1.0.17 | |
| Squid Web Proxy Cache | =3.1.0.18 | |
| Squid Web Proxy Cache | =3.1.1 | |
| Squid Web Proxy Cache | =3.1.2 | |
| Squid Web Proxy Cache | =3.1.3 | |
| Squid Web Proxy Cache | =3.1.4 | |
| Squid Web Proxy Cache | =3.1.5 | |
| Squid Web Proxy Cache | =3.1.5.1 | |
| Squid Web Proxy Cache | =3.1.6 | |
| Squid Web Proxy Cache | =3.1.7 | |
| Squid Web Proxy Cache | =3.1.8 | |
| Squid Web Proxy Cache | =3.1.9 | |
| Squid Web Proxy Cache | =3.1.10 | |
| Squid Web Proxy Cache | =3.1.11 | |
| Squid Web Proxy Cache | =3.1.12 | |
| Squid Web Proxy Cache | =3.1.12.1 | |
| Squid Web Proxy Cache | =3.1.12.2 | |
| Squid Web Proxy Cache | =3.1.12.3 | |
| Squid Web Proxy Cache | =3.1.13 | |
| Squid Web Proxy Cache | =3.1.14 | |
| Squid Web Proxy Cache | =3.1.15 | |
| Squid Web Proxy Cache | =3.1.16 | |
| Squid Web Proxy Cache | =3.1.17 | |
| Squid Web Proxy Cache | =3.1.18 | |
| Squid Web Proxy Cache | =3.1.19 | |
| Squid Web Proxy Cache | =3.1.20 | |
| Squid Web Proxy Cache | =3.1.21 | |
| Squid Web Proxy Cache | =3.1.22 | |
| Squid Web Proxy Cache | =3.2.0.1 | |
| Squid Web Proxy Cache | =3.2.0.2 | |
| Squid Web Proxy Cache | =3.2.0.3 | |
| Squid Web Proxy Cache | =3.2.0.4 | |
| Squid Web Proxy Cache | =3.2.0.5 | |
| Squid Web Proxy Cache | =3.2.0.6 | |
| Squid Web Proxy Cache | =3.2.0.7 | |
| Squid Web Proxy Cache | =3.2.0.8 | |
| Squid Web Proxy Cache | =3.2.0.9 | |
| Squid Web Proxy Cache | =3.2.0.10 | |
| Squid Web Proxy Cache | =3.2.0.11 | |
| Squid Web Proxy Cache | =3.2.0.12 | |
| Squid Web Proxy Cache | =3.2.0.13 | |
| Squid Web Proxy Cache | =3.2.0.14 | |
| Squid Web Proxy Cache | =3.2.0.15 | |
| Squid Web Proxy Cache | =3.2.0.16 | |
| Squid Web Proxy Cache | =3.2.0.17 | |
| Squid Web Proxy Cache | =3.2.0.18 | |
| Squid Web Proxy Cache | =3.2.0.19 | |
| Squid Web Proxy Cache | =3.2.1 | |
| Squid Web Proxy Cache | =3.2.2 | |
| Squid Web Proxy Cache | =3.2.3 | |
| Squid Web Proxy Cache | =3.2.4 | |
| Squid Web Proxy Cache | =3.2.5 | |
| Squid Web Proxy Cache | =3.2.6 | |
| Squid Web Proxy Cache | =3.2.7 | |
| Squid Web Proxy Cache | =3.2.8 | |
| Squid Web Proxy Cache | =3.2.9 | |
| Squid Web Proxy Cache | =3.2.10 | |
| Squid Web Proxy Cache | =3.2.11 | |
| Squid Web Proxy Cache | =3.2.12 | |
| Squid Web Proxy Cache | =3.2.13 | |
| Squid Web Proxy Cache | =3.3.0 | |
| Squid Web Proxy Cache | =3.3.0.1 | |
| Squid Web Proxy Cache | =3.3.0.2 | |
| Squid Web Proxy Cache | =3.3.0.3 | |
| Squid Web Proxy Cache | =3.3.1 | |
| Squid Web Proxy Cache | =3.3.2 | |
| Squid Web Proxy Cache | =3.3.3 | |
| Squid Web Proxy Cache | =3.3.4 | |
| Squid Web Proxy Cache | =3.3.5 | |
| Squid Web Proxy Cache | =3.3.6 | |
| Squid Web Proxy Cache | =3.3.7 | |
| Squid Web Proxy Cache | =3.3.8 | |
| Squid Web Proxy Cache | =3.3.9 | |
| Squid Web Proxy Cache | =3.3.10 | |
| Squid Web Proxy Cache | =3.3.11 | |
| Squid Web Proxy Cache | =3.3.12 | |
| Squid Web Proxy Cache | =3.3.13 | |
| Squid Web Proxy Cache | =3.3.14 | |
| Squid Web Proxy Cache | =3.4.0.1 | |
| Squid Web Proxy Cache | =3.4.0.2 | |
| Squid Web Proxy Cache | =3.4.0.3 | |
| Squid Web Proxy Cache | =3.4.1 | |
| Squid Web Proxy Cache | =3.4.2 | |
| Squid Web Proxy Cache | =3.4.3 | |
| Squid Web Proxy Cache | =3.4.4 | |
| Squid Web Proxy Cache | =3.4.4.1 | |
| Squid Web Proxy Cache | =3.4.4.2 | |
| Squid Web Proxy Cache | =3.4.8 | |
| Squid Web Proxy Cache | =3.4.9 | |
| Squid Web Proxy Cache | =3.4.10 | |
| Squid Web Proxy Cache | =3.4.11 | |
| Squid Web Proxy Cache | =3.4.12 | |
| Squid Web Proxy Cache | =3.4.13 | |
| Squid Web Proxy Cache | =3.4.14 | |
| Squid Web Proxy Cache | =3.5.0.1 | |
| Squid Web Proxy Cache | =3.5.0.2 | |
| Squid Web Proxy Cache | =3.5.0.3 | |
| Squid Web Proxy Cache | =3.5.0.4 | |
| Squid Web Proxy Cache | =3.5.1 | |
| Squid Web Proxy Cache | =3.5.2 | |
| Squid Web Proxy Cache | =3.5.3 | |
| Squid Web Proxy Cache | =3.5.4 | |
| Squid Web Proxy Cache | =3.5.5 | |
| Squid Web Proxy Cache | =3.5.6 | |
| Squid Web Proxy Cache | =3.5.7 | |
| Squid Web Proxy Cache | =3.5.8 | |
| Squid Web Proxy Cache | =3.5.9 | |
| Squid Web Proxy Cache | =3.5.10 | |
| Squid Web Proxy Cache | =3.5.11 | |
| Squid Web Proxy Cache | =3.5.12 | |
| Squid Web Proxy Cache | =3.5.13 | |
| Squid Web Proxy Cache | =3.5.14 | |
| Squid Web Proxy Cache | =3.5.15 | |
| Squid Web Proxy Cache | =3.5.16 | |
| Squid Web Proxy Cache | =3.5.17 | |
| Squid Web Proxy Cache | =4.0.1 | |
| Squid Web Proxy Cache | =4.0.2 | |
| Squid Web Proxy Cache | =4.0.3 | |
| Squid Web Proxy Cache | =4.0.4 | |
| Squid Web Proxy Cache | =4.0.5 | |
| Squid Web Proxy Cache | =4.0.6 | |
| Squid Web Proxy Cache | =4.0.7 | |
| Squid Web Proxy Cache | =4.0.8 | |
| Squid Web Proxy Cache | =4.0.9 | |
| Oracle Linux | =6 | |
| Oracle Linux | =7 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =15.10 | |
| Ubuntu Linux | =16.04 |
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Reference Links
- http://www.squid-cache.org/Advisories/SQUID-2016_9.txt
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_9.patch
- http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_9.patch
- https://access.redhat.com/security/cve/CVE-2016-4555
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1334246
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1334787
- https://access.redhat.com/errata/RHSA-2016:1139
- https://access.redhat.com/errata/RHSA-2016:1140
- https://access.redhat.com/errata/RHSA-2016:1138
- https://bugzilla.redhat.com/show_bug.cgi?id=1334786
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
- http://www.debian.org/security/2016/dsa-3625
- http://www.openwall.com/lists/oss-security/2016/05/06/3
- http://www.openwall.com/lists/oss-security/2016/05/06/5
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securitytracker.com/id/1035770
- http://www.ubuntu.com/usn/USN-2995-1
- https://security.gentoo.org/glsa/201607-01
Frequently Asked Questions
What is the severity of CVE-2016-4556?
CVE-2016-4556 has a severity rating that allows remote servers to cause a denial of service through crafted ESI responses.
How do I fix CVE-2016-4556?
To fix CVE-2016-4556, update Squid to version 3.5.18 or newer, or 4.0.10 or newer.
What versions are affected by CVE-2016-4556?
CVE-2016-4556 affects Squid versions prior to 3.5.18 and 4.0.10.
What type of vulnerability is CVE-2016-4556?
CVE-2016-4556 is a double free vulnerability that can lead to denial of service.
Who can exploit CVE-2016-4556?
CVE-2016-4556 can be exploited by remote attackers via specially crafted ESI responses.
- agent/references
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-4556
- agent/severity
- agent/weakness
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- agent/description
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