High severity8.6NVD Advisory· Published May 10, 2016· Updated Jun 17, 2026
CVE-2016-4554
CVE-2016-4554
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
14cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*+ 3 more
- 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:15.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
- cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*
- osv-coords6 versionspkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/squid3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/squid&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1
< 3.1.23-8.16.30.1+ 5 more
- (no CPE)range: < 3.1.23-8.16.30.1
- (no CPE)range: < 3.1.23-8.16.30.1
- (no CPE)range: < 2.7.STABLE5-2.12.29.1
- (no CPE)range: < 3.3.14-20.2
- (no CPE)range: < 2.7.STABLE5-2.12.29.1
- (no CPE)range: < 3.3.14-20.2
Patches
Vulnerability mechanics
References
17- www.squid-cache.org/Versions/v3/3.1/changesets/SQUID-2016_8.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.2/changesets/SQUID-2016_8.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.3/changesets/SQUID-2016_8.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_8.patchnvdPatch
- www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_8.patchnvdPatch
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlnvdThird Party Advisory
- www.securitytracker.com/id/1035769nvdThird Party Advisory
- www.squid-cache.org/Advisories/SQUID-2016_8.txtnvdVendor Advisory
- www.ubuntu.com/usn/USN-2995-1nvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.htmlnvd
- lists.opensuse.org/opensuse-updates/2016-08/msg00069.htmlnvd
- www.debian.org/security/2016/dsa-3625nvd
- access.redhat.com/errata/RHSA-2016:1138nvd
- access.redhat.com/errata/RHSA-2016:1139nvd
- access.redhat.com/errata/RHSA-2016:1140nvd
- security.gentoo.org/glsa/201607-01nvd
News mentions
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