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Debian Security Advisory 3625-1

Debian Security Advisory 3625-1
Posted Jul 22, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3625-1 - Several security issues have been discovered in the Squid caching proxy.

tags | advisory
systems | linux, debian
advisories | CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556
SHA-256 | 22d0c205cb033a2148166187d7a118d29d9dcc6295325cc3e1f28d5ff805791d

Debian Security Advisory 3625-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-3625-1 security@debian.org
https://www.debian.org/security/ Sebastien Delafond
July 22, 2016 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : squid3
CVE ID : CVE-2016-4051 CVE-2016-4052 CVE-2016-4053 CVE-2016-4054
CVE-2016-4554 CVE-2016-4555 CVE-2016-4556
Debian Bug : 823968

Several security issues have been discovered in the Squid caching proxy.

CVE-2016-4051:

CESG and Yuriy M. Kaminskiy discovered that Squid cachemgr.cgi was
vulnerable to a buffer overflow when processing remotely supplied
inputs relayed through Squid.

CVE-2016-4052:

CESG discovered that a buffer overflow made Squid vulnerable to a
Denial of Service (DoS) attack when processing ESI responses.

CVE-2016-4053:

CESG found that Squid was vulnerable to public information
disclosure of the server stack layout when processing ESI responses.

CVE-2016-4054:

CESG discovered that Squid was vulnerable to remote code execution
when processing ESI responses.

CVE-2016-4554:

Jianjun Chen found that Squid was vulnerable to a header smuggling
attack that could lead to cache poisoning and to bypass of
same-origin security policy in Squid and some client browsers.

CVE-2016-4555, CVE-2016-4556:

"bfek-18" and "@vftable" found that Squid was vulnerable to a Denial
of Service (DoS) attack when processing ESI responses, due to
incorrect pointer handling and reference counting.

For the stable distribution (jessie), these problems have been fixed in
version 3.4.8-6+deb8u3.

For the testing (stretch) and unstable (sid) distributions, these
problems have been fixed in version 3.5.19-1.

We recommend that you upgrade your squid3 packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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