Jérémy Bobbio uploaded new packages for silc-client/silc-toolkit which
fixed the following security problems:
DSA 1879-1
Several vulnerabilities have been discovered in the software suite for
the SILC protocol, a network protocol designed to provide end-to-end
security for conferencing services. The Common Vulnerabilities and
Exposures project identifies the following problems:
An incorrect format string in sscanf() used in the ASN1 encoder to scan
an OID value could overwrite a neighbouring variable on the stack as the
destination data type is smaller than the source type on 64-bit. On
64-bit architectures this could result in unexpected application
behaviour or even code execution in some cases (CVE-2008-7159).
Various format string vulnerabilities when handling parsed SILC messages
allow an attacker to execute arbitrary code with the rights of the
victim running the SILC client via crafted nick names or channel names
containing format strings (CVE-2009-3051).
An incorrect format string in a sscanf() call used in the HTTP server
component of silcd could result in overwriting a neighbouring variable
on the stack as the destination data type is smaller than the source
type on 64-bit. An attacker could exploit this by using crafted
Content-Length header values resulting in unexpected application
behaviour or even code execution in some cases (CVE-2008-7160).
For the etch-backports distribution the problems have been fixed in
version 1.1.4-1+lenny1~bpo40+1 for silc-client and
1.1.7-2+lenny1~bpo40+1 for silc-toolkit.
For the stable distribution (lenny), this problem has been fixed in
version 1.1.7-2+lenny1 of silc-toolkit and in version 1.1.4-1+lenny1
of silc-client.
For the testing distribution (squeeze), this problem will be fixed soon.
For the unstable distribution (sid), this problem has been fixed in
version 1.1.10-1 of silc-toolkit and version 1.1-2 of silc-client
(using libsilc from silc-toolkit since this upload).
We recommend that you upgrade your silc-toolkit/silc-client packages.
Upgrade instructions
--------------------
If you don't use pinning (http://backports.org/dokuwiki/doku.php?id=instructions)
you have to update the package manually via
apt-get -t etch-backport install libsilc-1.1-2 silc irssi-plugin-silc
We recommend to pin the backports repository to 200 so that new versions
of installed backports will be installed automatically.
Package: *
Pin: release a=etch-backports
Pin-Priority: 200
--
Jérémy Bobbio .''`.
lunar@debian.org : :Ⓐ : # apt-get install anarchism
`. `'`
`-
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