Fedora 19 : xen-4.2.3-12.fc19 (2013-23457)

IOMMU TLB flushing may be inadvertently suppressed Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues...

Fedora 20 : xen-4.3.1-6.fc20 (2013-23251)

Disaggregated domain management security status update, IOMMU TLB flushing may be inadvertently suppressed 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...

SuSE 11.3 Security Update : Xen (SAT Patch Number 8588)

The Xen hypervisor and tool-suite have been updated to fix security issues and bugs : - 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 - XSA-74: A lock order reversal between pagealloclock and...

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...

Insufficient TLB flushing in VT-d (iommu) code

ISSUE DESCRIPTION An inverted boolean parameter resulted in TLB flushes not happening upon clearing of a present translation table entry. Retaining stale TLB entries could allow guests access to memory that ought to have been revoked, or grant greater access than intended. IMPACT Malicious guest...

Inside the Response to the New York Times Attack

Late Tuesday morning, one of the engineers in CloudFlare’s San Francisco office saw a message on Twitter saying that the New York Times Web site was down. Minutes later, more messages appeared, as security researchers and others began looking into the situation and realized that someone may have...

Oracle Linux 5 : kernel (ELSA-2010-0046)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0046 advisory. - firewire ohci: handle receive packets with zero data Jay Fenlason 547241 547242 CVE-2009-4138 - fs respect flag in docoredump Danny Feng 544188 54418...

Fedora 16 : xen-4.1.3-1.fc16 (2012-11785)

update to 4.1.3 - fixes untrusted HVM guest can cause the dom0 to hang or crash XSA-11, CVE-2012-3433 843582 remove some unnecessary cache flushing that slow things down 841330 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security...

kernel security and bug fix update

2.6.18-164.11.1.0.1.el5 - xen check to see if hypervisor supports memory reservation change Chuck Anderson orabug 7556514 - Add entropy support to igb John Sobecki orabug 7607479 - nfs convert ENETUNREACH to ENOTCONN orabug 7689332 - NET Add xen pv/bonding netconsole support Tina yang orabug...

CVE-2008-7227

Geoserver exposes a vulnerability CVE-2008-7227 in which PartialBufferOutputStream2 may flush buffer contents while handling an in-memory buffer, preventing service exceptions from being reported. Affected products are GeoServer prior to 1.6.1 and 1.7.0-beta1. The underlying cause is in PartialBu...

Lots and lots of fun with rpc.statd

Last week was a little quiet, so I thought I'd throw some kindling on the fire. Here's another prime example of a format string bug: our old friend rpc.statd. Attached is an exploit. The offsets are for Linux/PowerPC, Debian 2.2. It isn't functional, though - and it's more than just kiddy-proofed...