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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:24994
[Eng]
Version
4
Class
patch
ALTXid
159311
Language
Russian
Severity
Critical
Title
Обновление ELSA-2017-0396 : устранение уязвимостей и ошибок в qemu-kvm
Description
[1.5.3-126.el7_3.5]
- kvm-cirrus-fix-patterncopy-checks.patch [bz#1420490]
- kvm-Revert-cirrus-allow-zero-source-pitch-in-pattern-fil.patch [bz#1420490]
- kvm-cirrus-add-blit_is_unsafe-call-to-cirrus_bitblt_cput.patch [bz#1420490]
- Resolves: bz#1420490(EMBARGOED CVE-2017-2620 qemu-kvm: Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo [rhel-7.3.z])
Family
unix
Platform
Oracle Linux 7
Product
qemu-kvm
Reference
VENDOR: ELSA-2017-0396
VENDOR: ELSA-2017-0396
Id:
ELSA-2017-0396
Reference:
http://linux.oracle.com/errata/ELSA-2017-0396.html
CVE: CVE-2017-2615
CVE: CVE-2017-2615
Id:
CVE-2017-2615
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2615
Comment
: Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.
CVSSv2 Score:
9
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSSv3 Score:
9.1
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
[qemu-devel] 20170201 [PATCH v3] cirrus: fix oob access issue (CVE-2017-2615) (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2615 (CONFIRM)
[oss-security] 20170201 CVE-2017-2615 Qemu: display: cirrus: oob access while doing bitblt copy backward mode (MLIST)
https://support.citrix.com/article/CTX220771 (CONFIRM)
GLSA-201702-28 (GENTOO)
GLSA-201702-27 (GENTOO)
1037804 (SECTRACK)
95990 (BID)
RHSA-2017:0454 (REDHAT)
RHSA-2017:0396 (REDHAT)
RHSA-2017:0350 (REDHAT)
RHSA-2017:0344 (REDHAT)
RHSA-2017:0334 (REDHAT)
RHSA-2017:0333 (REDHAT)
RHSA-2017:0332 (REDHAT)
RHSA-2017:0331 (REDHAT)
RHSA-2017:0330 (REDHAT)
RHSA-2017:0329 (REDHAT)
RHSA-2017:0328 (REDHAT)
RHSA-2017:0309 (REDHAT)
[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (MLIST)
CVE: CVE-2017-2620
CVE: CVE-2017-2620
Id:
CVE-2017-2620
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2620
Comment
: Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
CVSSv2 Score:
9
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSSv3 Score:
9.9
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE:
125 (Out-of-bounds Read)
References:
https://xenbits.xen.org/xsa/advisory-209.html (CONFIRM)
[qemu-devel] 20170221 [PATCH] cirrus: add blit_is_unsafe call to cirrus_bitblt_cputovideo (CVE-2017-2620) (MLIST)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620 (CONFIRM)
[oss-security] 20170221 CVE-2017-2620 Qemu: display: cirrus: out-of-bounds access issue while in cirrus_bitblt_cputovideo (MLIST)
https://support.citrix.com/article/CTX220771 (CONFIRM)
GLSA-201704-01 (GENTOO)
GLSA-201703-07 (GENTOO)
[debian-lts-announce] 20180206 [SECURITY] [DLA 1270-1] xen security update (MLIST)
1037870 (SECTRACK)
96378 (BID)
RHSA-2017:0454 (REDHAT)
RHSA-2017:0396 (REDHAT)
RHSA-2017:0352 (REDHAT)
RHSA-2017:0351 (REDHAT)
RHSA-2017:0350 (REDHAT)
RHSA-2017:0334 (REDHAT)
RHSA-2017:0333 (REDHAT)
RHSA-2017:0332 (REDHAT)
RHSA-2017:0331 (REDHAT)
RHSA-2017:0330 (REDHAT)
RHSA-2017:0329 (REDHAT)
RHSA-2017:0328 (REDHAT)
[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (MLIST)
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