Otklonjeni su sigurnosni nedostaci programskog paketa Xen koje su udaljeni napadači mogli iskoristiti za izvođenje napada uskraćivanjem usluge te dobivanje većih privilegija.
Paket:
xen 4.x
Operacijski sustavi:
SUSE Linux Enterprise Desktop 11, SUSE Linux Enterprise Server (SLES) 11
Kritičnost:
6.3
Problem:
pogreška u programskoj funkciji, pogreška u programskoj komponenti
Iskorištavanje:
udaljeno
Posljedica:
dobivanje većih privilegija, uskraćivanje usluga (DoS)
Propusti su posljedica pogrešaka u funkcijama "set_debugreg", "physdev_get_free_pirq", "XENMEM_populate_physmap" i "PHYSDEVOP_map_pirq" te načina na koji Qemu rukuje VT100 escape znakovima pri emuliranju određenih uređaja.
Posljedica:
Propusti omogućuju dobivanje većih privilegija i izvođenje DoS napada.
SUSE Security Update: Security update for Xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2012:1132-1
Rating: important
References: #776300 #776995 #777084 #777086 #777088 #777090
#777091
Cross-References: CVE-2012-3494 CVE-2012-3495 CVE-2012-3496
CVE-2012-3498 CVE-2012-3515
Affected Products:
SUSE Linux Enterprise Software Development Kit 11 SP2
SUSE Linux Enterprise Server 11 SP2 for VMware
SUSE Linux Enterprise Server 11 SP2
SUSE Linux Enterprise Desktop 11 SP2
______________________________________________________________________________
An update that solves 5 vulnerabilities and has two fixes
is now available. It includes one version update.
Description:
XEN was updated 4.1.3 to fix multiple bugs and security
issues.
The following security issues have been fixed:
* CVE-2012-3494: xen: hypercall set_debugreg
vulnerability (XSA-12)
* CVE-2012-3495: xen: hypercall physdev_get_free_pirq
vulnerability (XSA-13)
* CVE-2012-3496: xen: XENMEM_populate_physmap DoS
vulnerability (XSA-14)
* CVE-2012-3498: xen: PHYSDEVOP_map_pirq index
vulnerability (XSA-16)
* CVE-2012-3515: xen: Qemu VT100 emulation
vulnerability (XSA-17)
Also the following bugs have been fixed:
* pvscsi support of attaching Luns - bnc#776995
The following related bugs in vm-install 0.5.12 have been
fixed:
* bnc#776300 - vm-install does not pass --extra-args in
--upgrade
* Add for support Open Enterprise Server 11
* Add support for Windows 8 and Windows Server 2012
* Add support for Ubuntu 12 (Precise Pangolin)
Security Issue references:
* CVE-2012-3496
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3496
>
* CVE-2012-3494
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3494
>
* CVE-2012-3495
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3495
>
* CVE-2012-3498
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3498
>
* CVE-2012-3515
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3515
>
Indications:
Everyone using XEN should update.
Patch Instructions:
To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Software Development Kit 11 SP2:
zypper in -t patch sdksp2-xen-201209-6748
- SUSE Linux Enterprise Server 11 SP2 for VMware:
zypper in -t patch slessp2-xen-201209-6748
- SUSE Linux Enterprise Server 11 SP2:
zypper in -t patch slessp2-xen-201209-6748
- SUSE Linux Enterprise Desktop 11 SP2:
zypper in -t patch sledsp2-xen-201209-6748
To bring your system up-to-date, use "zypper patch".
Package List:
- SUSE Linux Enterprise Software Development Kit 11 SP2 (i586 x86_64):
xen-devel-4.1.3_02-0.5.1
- SUSE Linux Enterprise Server 11 SP2 for VMware (i586 x86_64):
xen-kmp-trace-4.1.3_02_3.0.38_0.5-0.5.1
- SUSE Linux Enterprise Server 11 SP2 (i586 x86_64):
xen-kmp-default-4.1.3_02_3.0.38_0.5-0.5.1
xen-kmp-trace-4.1.3_02_3.0.38_0.5-0.5.1
xen-libs-4.1.3_02-0.5.1
xen-tools-domU-4.1.3_02-0.5.1
- SUSE Linux Enterprise Server 11 SP2 (x86_64) [New Version: 0.5.12]:
vm-install-0.5.12-0.5.1
xen-4.1.3_02-0.5.1
xen-doc-html-4.1.3_02-0.5.1
xen-doc-pdf-4.1.3_02-0.5.1
xen-libs-32bit-4.1.3_02-0.5.1
xen-tools-4.1.3_02-0.5.1
- SUSE Linux Enterprise Server 11 SP2 (i586) [New Version: 0.5.12]:
vm-install-0.5.12-0.5.3
- SUSE Linux Enterprise Desktop 11 SP2 (i586 x86_64):
xen-kmp-default-4.1.3_02_3.0.38_0.5-0.5.1
xen-kmp-trace-4.1.3_02_3.0.38_0.5-0.5.1
xen-libs-4.1.3_02-0.5.1
xen-tools-domU-4.1.3_02-0.5.1
- SUSE Linux Enterprise Desktop 11 SP2 (x86_64) [New Version: 0.5.12]:
vm-install-0.5.12-0.5.1
xen-4.1.3_02-0.5.1
xen-doc-html-4.1.3_02-0.5.1
xen-doc-pdf-4.1.3_02-0.5.1
xen-libs-32bit-4.1.3_02-0.5.1
xen-tools-4.1.3_02-0.5.1
- SUSE Linux Enterprise Desktop 11 SP2 (i586) [New Version: 0.5.12]:
vm-install-0.5.12-0.5.3
References:
http://support.novell.com/security/cve/CVE-2012-3494.html
http://support.novell.com/security/cve/CVE-2012-3495.html
http://support.novell.com/security/cve/CVE-2012-3496.html
http://support.novell.com/security/cve/CVE-2012-3498.html
http://support.novell.com/security/cve/CVE-2012-3515.html
https://bugzilla.novell.com/776300
https://bugzilla.novell.com/776995
https://bugzilla.novell.com/777084
https://bugzilla.novell.com/777086
https://bugzilla.novell.com/777088
https://bugzilla.novell.com/777090
https://bugzilla.novell.com/777091
http://download.novell.com/patch/finder/?keywords=2940fd614757e4aece023d8a6e626af3
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