High severity · published May 10, 2016
CVE-2016-4554
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…
8.6
CVSS
38.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)38.9% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Oracle
6; 7 · source: NVD
SQ
Squid · Squid-cache
through 3.5.17 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4554
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4554
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
www.debian.org
http://www.debian.org/security/2016/dsa-3625
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Third Party Advisory
http://www.securitytracker.com/id/1035769
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