Detalji
Kreirano: 10 Rujan 2012
Kod programskog paketa Xen uočene su tri ranjivosti. Udaljeni napadači mogu ih iskoristiti za izvođenje napada uskraćivanjem usluge (eng. Denail of Service, DoS) i povećanje ovlasti na ranjivom sustavu.
Paket:
xen 4.x
Operacijski sustavi:
SUSE Linux Enterprise Desktop 10, SUSE Linux Enterprise Server (SLES) 10
Kritičnost:
6.3
Problem:
pogreška u programskoj funkciji, pogreška u programskoj komponenti
Iskorištavanje:
udaljeno
Posljedica:
dobivanje većih privilegija, uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2012-2625, CVE-2012-3494, CVE-2012-3515
Izvorni ID preporuke:
SUSE-SU-2012:1135-1
Izvor:
SUSE
Problem:
Propusti su posljedica pogrešaka u funkciji "set_debugreg", načinu na koji qemu rukuje VT100 escape nizovima te pogrešaka u radu komponente "pv bootloader" koja ne provjerava veličinu bzip2 i lzma sažetih slika jezgri.
Posljedica:
Propuste je moguće iskoristiti za dobivanje većih privilegija ili izvođenje DoS napada.
Rješenje:
Preporuča se primjena nadogradnje.
Izvorni tekst preporuke
SUSE Security Update: Security update for Xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2012:1135-1
Rating: important
References: #762484 #777084 #777090
Cross-References: CVE-2012-2625 CVE-2012-3494 CVE-2012-3515
Affected Products:
SUSE Linux Enterprise Server 10 SP4
SUSE Linux Enterprise Desktop 10 SP4
SLE SDK 10 SP4
______________________________________________________________________________
An update that fixes three vulnerabilities is now available.
Description:
XEN was updated 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-2012-3515: xen: Qemu VT100 emulation
vulnerability (XSA-17)
* CVE-2012-2625: xen: pv bootloader doesn't check the
size of the bzip2 or lzma compressed kernel, leading to
denial of service
Security Issue references:
* CVE-2012-3494
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3494
>
* CVE-2012-3515
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3515
>
* CVE-2012-2625
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2625
>
Indications:
Everyone using XEN should update.
Package List:
- SUSE Linux Enterprise Server 10 SP4 (i586 x86_64):
xen-3.2.3_17040_40-0.7.2
xen-devel-3.2.3_17040_40-0.7.2
xen-doc-html-3.2.3_17040_40-0.7.2
xen-doc-pdf-3.2.3_17040_40-0.7.2
xen-doc-ps-3.2.3_17040_40-0.7.2
xen-kmp-debug-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-default-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-kdump-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-smp-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-libs-3.2.3_17040_40-0.7.2
xen-tools-3.2.3_17040_40-0.7.2
xen-tools-domU-3.2.3_17040_40-0.7.2
xen-tools-ioemu-3.2.3_17040_40-0.7.2
- SUSE Linux Enterprise Server 10 SP4 (x86_64):
xen-libs-32bit-3.2.3_17040_40-0.7.2
- SUSE Linux Enterprise Server 10 SP4 (i586):
xen-kmp-bigsmp-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-kdumppae-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-vmi-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-vmipae-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
- SUSE Linux Enterprise Desktop 10 SP4 (i586 x86_64):
xen-3.2.3_17040_40-0.7.2
xen-devel-3.2.3_17040_40-0.7.2
xen-doc-html-3.2.3_17040_40-0.7.2
xen-doc-pdf-3.2.3_17040_40-0.7.2
xen-doc-ps-3.2.3_17040_40-0.7.2
xen-kmp-default-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-smp-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-libs-3.2.3_17040_40-0.7.2
xen-tools-3.2.3_17040_40-0.7.2
xen-tools-domU-3.2.3_17040_40-0.7.2
xen-tools-ioemu-3.2.3_17040_40-0.7.2
- SUSE Linux Enterprise Desktop 10 SP4 (x86_64):
xen-libs-32bit-3.2.3_17040_40-0.7.2
- SUSE Linux Enterprise Desktop 10 SP4 (i586):
xen-kmp-bigsmp-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
- SLE SDK 10 SP4 (i586 x86_64):
xen-3.2.3_17040_40-0.7.2
xen-devel-3.2.3_17040_40-0.7.2
xen-kmp-debug-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-kmp-kdump-3.2.3_17040_40_2.6.16.60_0.97.32-0.7.2
xen-libs-3.2.3_17040_40-0.7.2
xen-tools-3.2.3_17040_40-0.7.2
xen-tools-ioemu-3.2.3_17040_40-0.7.2
- SLE SDK 10 SP4 (x86_64):
xen-libs-32bit-3.2.3_17040_40-0.7.2
References:
http://support.novell.com/security/cve/CVE-2012-2625.html
http://support.novell.com/security/cve/CVE-2012-3494.html
http://support.novell.com/security/cve/CVE-2012-3515.html
https://bugzilla.novell.com/762484
https://bugzilla.novell.com/777084
https://bugzilla.novell.com/777090
http://download.novell.com/patch/finder/?keywords=7abce5ad0bd27a8e2084fe946c37389f
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