Description
Incorrect processing of responses to If-None-Modified HTTP conditional requests in Squid HTTP Proxy 3.1.10 through 3.1.23, 3.2.0.3 through 3.5.22, and 4.0.1 through 4.0.16 leads to client-specific Cookie data being leaked to other clients. Attack requests can easily be crafted by a client to probe a cache for this information.
References (7)
Core 7
Core References
Mitigation, Patch, Vendor Advisory x_refsource_confirm
http://www.squid-cache.org/Advisories/SQUID-2016_11.txt
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1037513
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/12/18/1
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0183.html
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0182.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/94953
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3745
Scores
CVSS v3
7.5
EPSS
0.0677
EPSS Percentile
93.2%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (50)
debian/debian_linux
8.0
squid-cache/squid
3.1.10
squid-cache/squid
3.1.11
squid-cache/squid
3.1.12
squid-cache/squid
3.1.14
squid-cache/squid
3.1.15
squid-cache/squid
3.1.16
squid-cache/squid
3.1.17
squid-cache/squid
3.1.18
squid-cache/squid
3.1.19
... and 40 more
Published
Jan 27, 2017
Tracked Since
Feb 18, 2026