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Date: Wed, 26 Nov 2014 17:02:00 +0100 From: security@...driva.com To: bugtraq@...urityfocus.com Subject: [ MDVSA-2014:229 ] libvncserver -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ 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> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iD8DBQFUdetlmqjQ0CJFipgRAtlsAJ9r8QqdTvbKu4NxWu5NjuMprs3u9QCfXHiW WAB/W3mvRmbb1VP4c88JjTI= =Yn8M -----END PGP SIGNATURE-----
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