Vulnerability-Lookup

RHSA-2017:0352

Vulnerability from csaf_redhat - Published: 2017-03-01 09:40 - Updated: 2025-11-21 17:59

Summary

Red Hat Security Advisory: qemu-kvm security update

Severity

Important

Notes

Topic: An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es): * Quick emulator (QEMU) 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. (CVE-2017-2620)

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2017-2620

Quick emulator (QEMU) 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.

5.5 (Medium)


                        
                          CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

CWE-787 - Out-of-bounds Write

Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. https://access.redhat.com/errata/RHSA-2017:0352

References

URL

Category

	https://access.redhat.com/errata/RHSA-2017:0352	self
	https://access.redhat.com/security/updates/classi…	external
	https://bugzilla.redhat.com/show_bug.cgi?id=1420484	external
	https://security.access.redhat.com/data/csaf/v2/a…	self
	https://access.redhat.com/security/cve/CVE-2017-2620	self
	https://bugzilla.redhat.com/show_bug.cgi?id=1420484	external
	https://www.cve.org/CVERecord?id=CVE-2017-2620	external
	https://nvd.nist.gov/vuln/detail/CVE-2017-2620	external
	https://xenbits.xen.org/xsa/advisory-209.html	external

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      "threats": [
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          "category": "impact",
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      "title": "Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo"
    }
  ]
}

CVE-2017-2620 (GCVE-0-2017-2620)

Vulnerability from cvelistv5 – Published: 2018-07-27 19:00 – Updated: 2024-08-05 14:02

Summary

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.

Severity ?

5.5 (Medium)


                        
                          CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

CWE

CWE-787

Assigner

redhat

References

URL

Tags

	http://rhn.redhat.com/errata/RHSA-2017-0329.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0334.html	vendor-advisoryx_refsource_REDHAT
	http://www.securitytracker.com/id/1037870	vdb-entryx_refsource_SECTRACK
	http://rhn.redhat.com/errata/RHSA-2017-0328.html	vendor-advisoryx_refsource_REDHAT
	https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2017-0333.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0351.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0454.html	vendor-advisoryx_refsource_REDHAT
	https://xenbits.xen.org/xsa/advisory-209.html	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2017-0331.html	vendor-advisoryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2017/02/21/1	mailing-listx_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2017-0350.html	vendor-advisoryx_refsource_REDHAT
	https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2017-0396.html	vendor-advisoryx_refsource_REDHAT
	https://security.gentoo.org/glsa/201704-01	vendor-advisoryx_refsource_GENTOO
	https://lists.gnu.org/archive/html/qemu-devel/201…	mailing-listx_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2017-0352.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0330.html	vendor-advisoryx_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0332.html	vendor-advisoryx_refsource_REDHAT
	http://www.securityfocus.com/bid/96378	vdb-entryx_refsource_BID
	https://support.citrix.com/article/CTX220771	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/201703-07	vendor-advisoryx_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	QEMU	Qemu:	Affected: 2.8

Date Public ?

2017-02-21 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2017:0352

CVE-2017-2620 (GCVE-0-2017-2620)

Tags

Sightings

Nomenclature