Vulnerability Description
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.
CVSS Score
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | 3.0 |
| Oracle | Linux | 6 |
| Canonical | Ubuntu Linux | 12.04 |
References
- 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/2016/05/06/3Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/06/5Release NotesThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.hThird Party Advisory
- http://www.securitytracker.com/id/1035770Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2016_9.txtVendor Advisory
- http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_9.patch
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_9.patchPatch
- http://www.ubuntu.com/usn/USN-2995-1Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1138
- https://access.redhat.com/errata/RHSA-2016:1139
- https://access.redhat.com/errata/RHSA-2016:1140
FAQ
What is CVE-2016-4556?
CVE-2016-4556 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2016-4556?
CVE-2016-4556 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-4556?
Check the references section above for vendor advisories and patch information. Affected products include: Squid-Cache Squid, Oracle Linux, Canonical Ubuntu Linux.