SuSE 11.2 Security Update : Xen (SAT Patch Number 8577)

Xen has been updated to fix a security issue and a bug : - XSA-73: A lock order reversal between page allocation and grant table locks could lead to host crashes or even host code execution. CVE-2013-4494 A non-security bug has also been fixed : - It is possible to start a VM twice on the same no...

Fedora 19 : xen-4.2.3-10.fc19 (2013-22325)

Lock order reversal between pagealloclock and mmrwlock, Hypercalls exposed to privilege rings 1 and 2 of HVM guests, Insufficient TLB flushing in VT-d iommu code Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable ha...

Fedora 18 : xen-4.2.3-10.fc18 (2013-22312)

Lock order reversal between pagealloclock and mmrwlock, Hypercalls exposed to privilege rings 1 and 2 of HVM guests, Insufficient TLB flushing in VT-d iommu code Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable ha...

Lock order reversal between page_alloc_lock and mm_rwlock

ISSUE DESCRIPTION The locks pagealloclock and mmrwlock are not always taken in the same order. This raises the possibility of deadlock. The incorrect order occurs only in the implementation of the deprecated domctl hypercall XENDOMCTLgetmemlist. IMPACT A malicious guest administrator may be able ...

Fedora 20 : xen-4.3.1-1.fc20 (2013-20517)

update to xen-4.3.1, Lock order reversal between page allocation and grant table lock ocaml xenstored mishandles oversized message replies systemd changes to allow oxenstored to be used instead of xenstored Note that Tenable Network Security has extracted the preceding description block directly...

Fedora 18 : xen-4.2.3-7.fc18 (2013-20544)

Lock order reversal between page allocation and grant table locks ocaml xenstored mishandles oversized message replies systemd changes to allow oxenstored to be used instead of xenstored Note that Tenable Network Security has extracted the preceding description block directly from the Fedora...

Fedora 19 : xen-4.2.3-7.fc19 (2013-20555)

Lock order reversal between page allocation and grant table locks ocaml xenstored mishandles oversized message replies systemd changes to allow oxenstored to be used instead of xenstored Note that Tenable Network Security has extracted the preceding description block directly from the Fedora...

DEBIAN-CVE-2013-4494

Xen before 4.1.x, 4.2.x, and 4.3.x does not take the pagealloclock and granttable.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service host deadlock via unspecified vectors...

Lock order reversal between page allocation and grant table locks

ISSUE DESCRIPTION The locks pagealloclock and granttable.lock are not always taken in the same order. This opens the possibility of deadlock. IMPACT A malicious guest administrator can deny service to the entire host. VULNERABLE SYSTEMS Xen versions going back to at least Xen 3.2 are vulnerable. ...