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Mandriva Linux Security Advisory 2011-087

Mandriva Linux Security Advisory 2011-087
Posted May 16, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-087 - The rfbSendFramebufferUpdate function in server/libvncserver/rfbserver.c in vino-server in Vino 2.x before 2.28.3, 2.32.x before 2.32.2, 3.0.x before 3.0.2, and 3.1.x before 3.1.1, when raw encoding is used, allows remote authenticated users to cause a denial of service X position or Y position value in a framebuffer update request that triggers an out-of-bounds memory access, related to the rfbTranslateNone and rfbSendRectEncodingRaw functions. The rfbSendFramebufferUpdate function in server/libvncserver/rfbserver.c in vino-server in Vino 2.x before 2.28.3, 2.32.x before 2.32.2, 3.0.x before 3.0.2, and 3.1.x before 3.1.1, when tight encoding is used, allows remote authenticated users to cause a denial of service via crafted dimensions in a framebuffer update request that triggers an out-of-bounds read operation. The updated packages have been upgraded to 2.28.3 which is not vulnerable to these issues.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2011-0904, CVE-2011-0905
SHA-256 | 071cbada81358e2a216406d81427278602a3d81ce6f686ff9d33a09a53583363

Mandriva Linux Security Advisory 2011-087

Change Mirror Download
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Hash: SHA1

_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2011:087
http://www.mandriva.com/security/
_______________________________________________________________________

Package : vino
Date : May 16, 2011
Affected: 2010.1
_______________________________________________________________________

Problem Description:

Multile vulnerabilities has been found and corrected in vino:

The rfbSendFramebufferUpdate function in
server/libvncserver/rfbserver.c in vino-server in Vino 2.x before
2.28.3, 2.32.x before 2.32.2, 3.0.x before 3.0.2, and 3.1.x before
3.1.1, when raw encoding is used, allows remote authenticated users to
cause a denial of service (daemon crash) via a large (1) X position or
(2) Y position value in a framebuffer update request that triggers
an out-of-bounds memory access, related to the rfbTranslateNone and
rfbSendRectEncodingRaw functions (CVE-2011-0904).

The rfbSendFramebufferUpdate function in
server/libvncserver/rfbserver.c in vino-server in Vino 2.x before
2.28.3, 2.32.x before 2.32.2, 3.0.x before 3.0.2, and 3.1.x before
3.1.1, when tight encoding is used, allows remote authenticated users
to cause a denial of service (daemon crash) via crafted dimensions
in a framebuffer update request that triggers an out-of-bounds read
operation (CVE-2011-0905).

The updated packages have been upgraded to 2.28.3 which is not
vulnerable to these isssues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0904
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0905
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2010.1:
3f8d792003d96c24874adf6c40a15bb3 2010.1/i586/vino-2.28.3-1.1mdv2010.2.i586.rpm
a5347580a783a953aa65f04510969c33 2010.1/SRPMS/vino-2.28.3-1.1mdv2010.2.src.rpm

Mandriva Linux 2010.1/X86_64:
3cdd6a45c253350b1422a311acb5d4c4 2010.1/x86_64/vino-2.28.3-1.1mdv2010.2.x86_64.rpm
a5347580a783a953aa65f04510969c33 2010.1/SRPMS/vino-2.28.3-1.1mdv2010.2.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/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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