Description
mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.
References (17)
Core 17
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201607-01
Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Patch x_refsource_confirm
http://www.squid-cache.org/Versions/v3/3.3/changesets/SQUID-2016_8.patch
Patch x_refsource_confirm
http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_8.patch
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
Patch x_refsource_confirm
http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID-2016_8.patch
Third Party Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2995-1
Third Party Advisory vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1035769
Patch x_refsource_confirm
http://www.squid-cache.org/Versions/v3/3.2/changesets/SQUID-2016_8.patch
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1140
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1138
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1139
Vendor Advisory x_refsource_confirm
http://www.squid-cache.org/Advisories/SQUID-2016_8.txt
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
Patch x_refsource_confirm
http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_8.patch
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3625
Scores
CVSS v3
8.6
EPSS
0.3915
EPSS Percentile
98.4%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Details
CWE
CWE-345
Status
published
Products (7)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
15.10
canonical/ubuntu_linux
16.04
oracle/linux
6
oracle/linux
7
squid-cache/squid
< 3.5.17
Published
May 10, 2016
Tracked Since
Feb 18, 2026