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Debian Security Advisory 2573-1

Debian Security Advisory 2573-1
Posted Nov 13, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2573-1 - Ralf Paffrath reported that Radsecproxy, a RADIUS protocol proxy, mixed up pre- and post-handshake verification of clients. This vulnerability may wrongly accept clients without checking their certificate chain under certain configurations.

tags | advisory, protocol
systems | linux, debian
advisories | CVE-2012-4523, CVE-2012-4566
MD5 | 7cc2e0463137cb430e3cafa34beb7fc6

Debian Security Advisory 2573-1

Change Mirror Download
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- -------------------------------------------------------------------------
Debian Security Advisory DSA-2573-1 security@debian.org
http://www.debian.org/security/ Luciano Bello
November 10, 2012 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : radsecproxy
Vulnerability : SSL certificate verification weakness
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-4523 CVE-2012-4566

Ralf Paffrath reported that Radsecproxy, a RADIUS protocol proxy, mixed up
pre- and post-handshake verification of clients. This vulnerability may
wrongly accept clients without checking their certificate chain under
certain configurations.

Raphael Geissert spotted that the fix for CVE-2012-4523 was incomplete,
giving origin to CVE-2012-4566. Both vulnerabilities are fixed with this
update.

Notice that this fix may make Radsecproxy reject some clients that are
currently (erroneously) being accepted.

For the stable distribution (squeeze), these problems have been fixed in
version 1.4-1+squeeze1.

For the testing distribution (wheezy), these problems have been fixed in
version 1.6.2-1.

For the unstable distribution (sid), these problems have been fixed in
version 1.6.2-1.

We recommend that you upgrade your radsecproxy packages.

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

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