Debian: Security Advisory (DSA-1907-1)

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[SECURITY] [DSA 1907-1] New kvm packages fix several vulnerabilities

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------ Debian Security Advisory DSA-1907-1 [email protected] http://www.debian.org/security/ Giuseppe Iuculano October 13, 2009 http://www.debian.org/security/faq -...

CVE-2009-3290

CVE-2009-3290 affects KVM in Linux kernel 2.6.25-rc1 and earlier than 2.6.31 on x86. The kvm_emulate_hypercall implementation fails to restrict MMU hypercalls by CPL, enabling a local guest user to crash the guest kernel and read/write guest memory via unspecified addresses. Root cause: CPL check...

CVE-2009-3290

The kvmemulatehypercall function in arch/x86/kvm/x86.c in KVM in the Linux kernel 2.6.25-rc1, and other versions before 2.6.31, when running on x86 systems, does not prevent access to MMU hypercalls from ring 0, which allows local guest OS users to cause a denial of service guest kernel crash and...

kernel: xen: local denial of service

The hypervisorcallback function in Xen, possibly before 3.4.0, as applied to the Linux kernel 2.6.30-rc4, 2.6.18, and probably other versions allows guest user applications to cause a denial of service kernel oops of the guest OS by triggering a segmentation fault in "certain address ranges."...