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Sicherheit: Mehrere Probleme in LibVNCServer
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in LibVNCServer
ID: MDVSA-2014:229
Distribution: Mandriva
Plattformen: Mandriva Business Server 1.0
Datum: Mi, 26. November 2014, 20:33
Referenzen: http://advisories.mageia.org/MGASA-2014-0397.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6051
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6052
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6053
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6054
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6055
Applikationen: LibVNCServer

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2014:229
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : libvncserver
Date : November 26, 2014
Affected: Business Server 1.0
_______________________________________________________________________

Problem Description:

Updated libvncserver packages fix security vulnerabilities:

A malicious VNC server can trigger incorrect memory management handling
by advertising a large screen size parameter to the VNC client. This
would result in multiple memory corruptions and could allow remote
code execution on the VNC client (CVE-2014-6051, CVE-2014-6052).

A malicious VNC client can trigger multiple DoS conditions on the VNC
server by advertising a large screen size, ClientCutText message length
and/or a zero scaling factor parameter (CVE-2014-6053, CVE-2014-6054).

A malicious VNC client can trigger multiple stack-based buffer
overflows by passing a long file and directory names and/or
attributes (FileTime) when using the file transfer message feature
(CVE-2014-6055).

Additionally libvncserver has been built against the new system
minilzo library which is also being provided with this advisory.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6051
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6052
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6053
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6054
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6055
http://advisories.mageia.org/MGASA-2014-0397.html
_______________________________________________________________________

Updated Packages:

Mandriva Business Server 1/X86_64:
4d938f964a86df6c1fb2aad9342db1e3
mbs1/x86_64/lib64lzo2_2-2.08-1.1.mbs1.x86_64.rpm
676ed246f1587fb815620e42a2e64e9a
mbs1/x86_64/lib64lzo-devel-2.08-1.1.mbs1.x86_64.rpm
d04fc1fb9b16142be0111f5efb276967
mbs1/x86_64/lib64minilzo0-2.08-1.1.mbs1.x86_64.rpm
84f52d51b3a28e5eecd8b0f7dd3c3b65
mbs1/x86_64/lib64vncserver0-0.9.9-1.mbs1.x86_64.rpm
50d5bf0cdff71f9773d07bfee2804eaf
mbs1/x86_64/lib64vncserver-devel-0.9.9-1.mbs1.x86_64.rpm
70da4fa0a7eb955f45ed1fcd6fd4ca19 mbs1/x86_64/linuxvnc-0.9.9-1.mbs1.x86_64.rpm

da9cbd99e5f15bbe8a0185e044b60c13 mbs1/SRPMS/liblzo-2.08-1.1.mbs1.src.rpm
6cf01a7cb6d388558f73d059340ed3da mbs1/SRPMS/libvncserver-0.9.9-1.mbs1.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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_______________________________________________________
Want to buy your Pack or Services from Mandriva?
Go to http://store.mandriva.com
_______________________________________________________


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