Synopsis

Moderate: xen security update

Type/Severity

Security Advisory: Moderate

Topic

Updated xen packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

The xen packages contain administration tools and the xend service for
managing the kernel-xen kernel for virtualization on Red Hat Enterprise
Linux.

A flaw was found in the way the pyGrub boot loader handled compressed
kernel images. A privileged guest user in a para-virtualized guest (a DomU)
could use this flaw to create a crafted kernel image that, when attempting
to boot it, could result in an out-of-memory condition in the privileged
domain (the Dom0). (CVE-2012-2625)

Red Hat would like to thank Xinli Niu for reporting this issue.

All users of xen are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
updated packages, the xend service must be restarted for this update to
take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 821676 - CVE-2012-2625 xen: pv bootloader doesn't check the size of the bzip2 or lzma compressed kernel

CVEs

• CVE-2012-2625

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Enterprise Linux Server 5

SRPM
xen-3.0.3-135.el5_8.4.src.rpm	SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
x86_64
xen-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: 972bab22690b5564550bdc909ee089b44377103dbe3abc7439c793b5499fe823
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-devel-3.0.3-135.el5_8.4.i386.rpm	SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
xen-devel-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: 4908c65ce5e91ce231d16d8200198ca451fb1a5de433a3d4f99c3e38b4f4f6df
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
xen-libs-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: c750103be8bcefee53bd9db7ee38eb827d32adaec7157820984db219fd772ab2
ia64
xen-3.0.3-135.el5_8.4.ia64.rpm	SHA-256: 45a1867dec7fc83fa809cca59e7e7e51cfee676c94c5f3083f19c3639e771527
xen-debuginfo-3.0.3-135.el5_8.4.ia64.rpm	SHA-256: ca6e7a4c7c05c9518c62afcae96c51aef9d98d2c6a5cd58240d8dcbb005d854e
xen-debuginfo-3.0.3-135.el5_8.4.ia64.rpm	SHA-256: ca6e7a4c7c05c9518c62afcae96c51aef9d98d2c6a5cd58240d8dcbb005d854e
xen-devel-3.0.3-135.el5_8.4.ia64.rpm	SHA-256: fd3285c333ba318b5483016afc69534897279cec61484bd2934e2d548f458b92
xen-libs-3.0.3-135.el5_8.4.ia64.rpm	SHA-256: 49a248c5d1f092f56d1d52d8d6fd2900795093693f686a1db81a2cfeb2a3b8a4
i386
xen-3.0.3-135.el5_8.4.i386.rpm	SHA-256: 7fd0aa03ed48847a2f25f8a7d5b4ac2da23df0885e2f35adb71e989f5d108a3b
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-devel-3.0.3-135.el5_8.4.i386.rpm	SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f

Red Hat Enterprise Linux Workstation 5

SRPM
xen-3.0.3-135.el5_8.4.src.rpm	SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
x86_64
xen-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: 972bab22690b5564550bdc909ee089b44377103dbe3abc7439c793b5499fe823
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-devel-3.0.3-135.el5_8.4.i386.rpm	SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
xen-devel-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: 4908c65ce5e91ce231d16d8200198ca451fb1a5de433a3d4f99c3e38b4f4f6df
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
xen-libs-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: c750103be8bcefee53bd9db7ee38eb827d32adaec7157820984db219fd772ab2
i386
xen-3.0.3-135.el5_8.4.i386.rpm	SHA-256: 7fd0aa03ed48847a2f25f8a7d5b4ac2da23df0885e2f35adb71e989f5d108a3b
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-devel-3.0.3-135.el5_8.4.i386.rpm	SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f

Red Hat Enterprise Linux Desktop 5

SRPM
xen-3.0.3-135.el5_8.4.src.rpm	SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
x86_64
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
xen-libs-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: c750103be8bcefee53bd9db7ee38eb827d32adaec7157820984db219fd772ab2
i386
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f

Red Hat Enterprise Linux Server from RHUI 5

SRPM
xen-3.0.3-135.el5_8.4.src.rpm	SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
x86_64
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
xen-libs-3.0.3-135.el5_8.4.x86_64.rpm	SHA-256: c750103be8bcefee53bd9db7ee38eb827d32adaec7157820984db219fd772ab2
i386
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm	SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-libs-3.0.3-135.el5_8.4.i386.rpm	SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f