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Debian Security Advisory DSA-1962 security@debian.org
http://www.debian.org/security/ Giuseppe Iuculano
December 23, 2009 http://www.debian.org/security/faq
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Package : kvm
Vulnerability : several vulnerabilities
Problem type : local
Debian-specific: no
Debian bugs : 557739 562075 562076
CVE Ids : CVE-2009-3638 CVE-2009-3722 CVE-2009-4031
Several vulnerabilities have been discovered in kvm, a full virtualization system.
The Common Vulnerabilities and Exposures project identifies the
following problems:
CVE-2009-3638
It was discovered an Integer overflow in the kvm_dev_ioctl_get_supported_cpuid
function. This allows local users to have an unspecified impact via a
KVM_GET_SUPPORTED_CPUID request to the kvm_arch_dev_ioctl function.
CVE-2009-3722
It was discovered that the handle_dr function in the KVM subsystem does not
properly verify the Current Privilege Level (CPL) before accessing a debug
register, which allows guest OS users to cause a denial of service (trap) on the
host OS via a crafted application.
CVE-2009-4031
It was discovered that the do_insn_fetch function in the x86 emulator in the KVM
subsystem tries to interpret instructions that contain too many bytes to be
valid, which allows guest OS users to cause a denial of service (increased
scheduling latency) on the host OS via unspecified manipulations related to SMP
support.
For the stable distribution (lenny), these problems have been fixed in version
72+dfsg-5~lenny4.
For the testing distribution (squeeze), and the unstable distribution (sid),
these problems will be fixed soon.
We recommend that you upgrade your kvm package.
Upgrade instructions
- --------------------
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 5.0 alias lenny
- --------------------------------
Debian (stable)
- ---------------
Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64,
mips, mipsel, powerpc, s390 and sparc.
Source archives:
http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg.orig.tar.gz
Size/MD5 checksum: 3250251 899a66ae2ea94e994e06f637e1afef4a
http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny4.diff.gz
Size/MD5 checksum: 42354 12a3490ebcba2c1e9aa2a86140eaa2e3
http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny4.dsc
Size/MD5 checksum: 1349 95ea1b5511954549694e198b838e308c
Architecture independent packages:
http://security.debian.org/pool/updates/main/k/kvm/kvm-source_72+dfsg-5~lenny4_all.deb
Size/MD5 checksum: 158524 70f46f694afd3169ce16a4c84ee32eb6
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny4_amd64.deb
Size/MD5 checksum: 1105892 22f218058f3cc3f8d40ca9069ff151f9
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/k/kvm/kvm_72+dfsg-5~lenny4_i386.deb
Size/MD5 checksum: 1030580 ffdfcfce508514828bf455183e45f581
These files will probably be moved into the stable distribution on
its next update.
- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/
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"
DSA 1944-1: New request-tracker packages fix session hijack vulnerabilityLady Gaga has over 20 wigs
This entry was posted
on 3:14 PM
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Archives
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2009
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December
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- DSA 1958-1: New libtool packages fix privilege esc...
- DSA 1957-1: New aria2 packages fix arbitrary code ...
- DSA-1962-1: New kvm packages fix several vulnerabi...
- USN-873-1: Firefox 3.0 and Xulrunner 1.9 vulnerabi...
- DSA 1961-1: New bind9 packages fix cache poisoning
- DSA 1963-1: New unbound packages fix DNSSEC valida...
- RHSA-2009:1694-01 Critical: java-1.6.0-ibm securit...
- RHSA-2009:1688-01 Moderate: condor security update
- GLSA 200912-02 Ruby on Rails: Multiple vulnerabil...
- RHSA-2009:1689-01 Moderate: condor security update
- DSA 1960-1: New acpid packages fix weak file permi...
- USN-874-1: Firefox 3.5 and Xulrunner 1.9.1 vulnera...
- DSA 1954-1: New cacti packages fix insufficient in...
- DSA-1959-1: New ganeti packages fix arbitrary comm...
- USN-875-1: Red Hat Cluster Suite vulnerabilities
- RHSA-2009:1680-01 Important: xpdf security update
- DSA 1956-1: New xulrunner packages fix several vul...
- RHSA-2009:1682-01 Important: kdegraphics security ...
- RHSA-2009:1671-01 Important: kernel security and b...
- DSA-1953-1: New expat packages fix denial of service
- RHSA-2009:1670-01 Important: kernel security and b...
- DSA 1952-2: End-of-life announcement for asterisk ...
- USN-871-1: KDE vulnerability
- USN-871-2: KDE 4 vulnerabilities
- RHSA-2009:1658-01 Critical: flash-plugin security ...
- USN-867-1: Ntp vulnerability
- USN-868-1: GRUB 2 vulnerability
- USN-869-1: Linux kernel vulnerabilities
- USN-870-1: PyGreSQL vulnerability
- USN-866-1: gnome-screensaver vulnerability
- RHSA-2009:1647-01 Critical: java-1.5.0-ibm securit...
- DSA 1947-1: New Shibboleth packages fix cross-site...
- RHSA-2009:1643-01 Critical: java-1.4.2-ibm securit...
- DSA 1945-1: New gforge packages fix denial of service
- DSA 1946-1: New belpic packages fix cryptographic ...
- DSA 1944-1: New request-tracker packages fix sessi...
- USN-863-1: QEMU vulnerability
- RHSA-2009:1635-01 Important: kernel-rt security, b...
- DSA 1943-1: New openldap2.3/openldap packages fix ...
- RHSA-2009:1619-01 Moderate: dstat security update
- GLSA 200912-01 OpenSSL: Multiple vulnerabilities
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December
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