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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA1011] DSA-1011-1 kernel-patch-vserver Vulnerability Assessment Details
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[DSA1011] DSA-1011-1 kernel-patch-vserver |
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DSA-1011-1 kernel-patch-vserver Detailed Explanation for this Vulnerability Assessment Several vulnerabilities have been discovered in the Debian vserver support for Linux. The Common Vulnerabilities and Exposures project identifies the following problems: Bjørn Steinbrink discovered that the chroot barrier is not set correctly with util-vserver which may result in unauthorised escapes from a vserver to the host system. This vulnerability is limited to the 2.4 kernel patch included in kernel-patch-vserver. The correction to this problem requires updating the util-vserver package as well and installing a new kernel built from the updated kernel-patch-vserver package. The default policy of util-vserver is set to trust all unknown capabilities instead of considering them as insecure. The old stable distribution (woody) does not contain a kernel-patch-vserver package. For the stable distribution (sarge) this problem has been fixed in version 1.9.5.5 of kernel-patch-vserver and in version 0.30.204-5sarge3 of util-vserver. For the unstable distribution (sid) this problem has been fixed in version 2.3 of kernel-patch-vserver and in version 0.30.208-1 of util-vserver. We recommend that you upgrade your util-vserver and kernel-patch-vserver packages and build a new kernel immediately. Solution : http://www.debian.org/security/2006/dsa-1011 Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is (C) 2007 Michel Arboi |
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