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CVE-2015-3455

Status Candidate

Overview

Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.

Related Files

Red Hat Security Advisory 2015-2378-01
Posted Nov 20, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-2378-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. It was found that Squid configured with client-first SSL-bump did not correctly validate X.509 server certificate host name fields. A man-in-the-middle attacker could use this flaw to spoof a Squid server using a specially crafted X.509 certificate. This update fixes the following bugs: Previously, the squid process did not handle file descriptors correctly when receiving Simple Network Management Protocol requests. As a consequence, the process gradually accumulated open file descriptors. This bug has been fixed and squid now handles SNMP requests correctly, closing file descriptors when necessary.

tags | advisory, web, spoof, protocol
systems | linux, redhat
advisories | CVE-2015-3455
MD5 | 17e276f88b27c3e876ee6f16daa311dc
Mandriva Linux Security Advisory 2015-230
Posted May 6, 2015
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2015-230 - Squid configured with client-first SSL-bump does not correctly validate X509 server certificate domain / hostname fields.

tags | advisory
systems | linux, mandriva
advisories | CVE-2015-3455
MD5 | 1c4f0749c08e03a358035c5565e7e8ec
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