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Security Advisory Moderate: xen security update

Advisory: RHSA-2012:1130-1
Type: Security Advisory
Severity: Moderate
Issued on: 2012-07-31
Last updated on: 2012-07-31
Affected Products: RHEL Desktop Multi OS (v. 5 client)
RHEL Virtualization (v. 5 server)
Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
CVEs (cve.mitre.org): CVE-2012-2625

Details

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.

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

Updated packages

RHEL Desktop Multi OS (v. 5 client)

SRPMS:
xen-3.0.3-135.el5_8.4.src.rpm
File outdated by:  RHBA-2013:0846
    MD5: 7cfad63ca9df7c9d2d1210d495246d61
SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
 
IA-32:
xen-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 153e90cd2fe2473bcb82a4e3dfe5a22e
SHA-256: 7fd0aa03ed48847a2f25f8a7d5b4ac2da23df0885e2f35adb71e989f5d108a3b
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-devel-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 575ec0e25f245e362129ce2597e74fcd
SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
 
x86_64:
xen-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 97a8f416d5f708c6da8123774c89de62
SHA-256: 972bab22690b5564550bdc909ee089b44377103dbe3abc7439c793b5499fe823
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 72b8acf97ddb7af72f485d25105d7319
SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-devel-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 575ec0e25f245e362129ce2597e74fcd
SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
xen-devel-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: f547d8cc9a80d5dfb2fc92e18e57d2cd
SHA-256: 4908c65ce5e91ce231d16d8200198ca451fb1a5de433a3d4f99c3e38b4f4f6df
 
RHEL Virtualization (v. 5 server)

SRPMS:
xen-3.0.3-135.el5_8.4.src.rpm
File outdated by:  RHBA-2013:0846
    MD5: 7cfad63ca9df7c9d2d1210d495246d61
SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
 
IA-32:
xen-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 153e90cd2fe2473bcb82a4e3dfe5a22e
SHA-256: 7fd0aa03ed48847a2f25f8a7d5b4ac2da23df0885e2f35adb71e989f5d108a3b
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-devel-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 575ec0e25f245e362129ce2597e74fcd
SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
 
IA-64:
xen-3.0.3-135.el5_8.4.ia64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 751afeb900a5d4a15c51ec9e4e47e4de
SHA-256: 45a1867dec7fc83fa809cca59e7e7e51cfee676c94c5f3083f19c3639e771527
xen-debuginfo-3.0.3-135.el5_8.4.ia64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 55ddd9d7511607080cdec0813bf51784
SHA-256: ca6e7a4c7c05c9518c62afcae96c51aef9d98d2c6a5cd58240d8dcbb005d854e
xen-devel-3.0.3-135.el5_8.4.ia64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 68212bffb8171fd5b7706201d3144356
SHA-256: fd3285c333ba318b5483016afc69534897279cec61484bd2934e2d548f458b92
 
x86_64:
xen-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 97a8f416d5f708c6da8123774c89de62
SHA-256: 972bab22690b5564550bdc909ee089b44377103dbe3abc7439c793b5499fe823
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 72b8acf97ddb7af72f485d25105d7319
SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-devel-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 575ec0e25f245e362129ce2597e74fcd
SHA-256: 753213065a88426c7adba89679149d711b900ed79c8064d22da70eaef960f517
xen-devel-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: f547d8cc9a80d5dfb2fc92e18e57d2cd
SHA-256: 4908c65ce5e91ce231d16d8200198ca451fb1a5de433a3d4f99c3e38b4f4f6df
 
Red Hat Enterprise Linux (v. 5 server)

SRPMS:
xen-3.0.3-135.el5_8.4.src.rpm
File outdated by:  RHBA-2013:0846
    MD5: 7cfad63ca9df7c9d2d1210d495246d61
SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
 
IA-32:
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-libs-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2adb1ad7ee132a2605323cd14ffdee9f
SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
 
IA-64:
xen-debuginfo-3.0.3-135.el5_8.4.ia64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 55ddd9d7511607080cdec0813bf51784
SHA-256: ca6e7a4c7c05c9518c62afcae96c51aef9d98d2c6a5cd58240d8dcbb005d854e
xen-libs-3.0.3-135.el5_8.4.ia64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 341b69143b5d7df12c973842874d04c8
SHA-256: 49a248c5d1f092f56d1d52d8d6fd2900795093693f686a1db81a2cfeb2a3b8a4
 
x86_64:
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 72b8acf97ddb7af72f485d25105d7319
SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-libs-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2adb1ad7ee132a2605323cd14ffdee9f
SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
xen-libs-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 8a80736c04f3de3d765612fad6c63c4c
SHA-256: c750103be8bcefee53bd9db7ee38eb827d32adaec7157820984db219fd772ab2
 
Red Hat Enterprise Linux Desktop (v. 5 client)

SRPMS:
xen-3.0.3-135.el5_8.4.src.rpm
File outdated by:  RHBA-2013:0846
    MD5: 7cfad63ca9df7c9d2d1210d495246d61
SHA-256: 990439d4a3246a2393ad91fb43a1287ed113c7ed01a3f82eb465ae3f0d3fd7ed
 
IA-32:
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-libs-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2adb1ad7ee132a2605323cd14ffdee9f
SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
 
x86_64:
xen-debuginfo-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2b4fd7559be595136f9585d34f31a102
SHA-256: fb221373cc533d1df7549ea1968f7bad48bb98e2bef489c93bfbc85b710c4808
xen-debuginfo-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 72b8acf97ddb7af72f485d25105d7319
SHA-256: e717b10d63e1e201da3b9dbecf7704b51abefaea81c4d90f1ee1a54bb4e69332
xen-libs-3.0.3-135.el5_8.4.i386.rpm
File outdated by:  RHBA-2013:0846
    MD5: 2adb1ad7ee132a2605323cd14ffdee9f
SHA-256: eb596bb9640811fe69dfd7772f34ba06cf5a97de3e7c9588fda6a2b84062ed4f
xen-libs-3.0.3-135.el5_8.4.x86_64.rpm
File outdated by:  RHBA-2013:0846
    MD5: 8a80736c04f3de3d765612fad6c63c4c
SHA-256: c750103be8bcefee53bd9db7ee38eb827d32adaec7157820984db219fd772ab2
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

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


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/