9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8 High
AI Score
Confidence
Low
9 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
50.8%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2018 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.890842");
script_cve_id("CVE-2017-2615", "CVE-2017-2620", "CVE-2017-5898", "CVE-2017-5973");
script_tag(name:"creation_date", value:"2018-01-07 23:00:00 +0000 (Sun, 07 Jan 2018)");
script_version("2024-02-02T05:06:06+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:06 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"9.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2018-09-06 14:31:12 +0000 (Thu, 06 Sep 2018)");
script_name("Debian: Security Advisory (DLA-842-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB7");
script_xref(name:"Advisory-ID", value:"DLA-842-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2017/DLA-842-1");
script_xref(name:"URL", value:"https://wiki.debian.org/LTS");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'qemu-kvm' package(s) announced via the DLA-842-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several vulnerabilities were discovered in qemu-kvm, a full virtualization solution for Linux hosts on x86 hardware with x86 guests.
CVE-2017-2615
The Cirrus CLGD 54xx VGA Emulator in qemu-kvm 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 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-kvm process on the host.
CVE-2017-2620
The Cirrus CLGD 54xx VGA Emulator in qemu-kvm is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data in cirrus_bitblt_cputovideo.
A privileged user inside 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-kvm process on the host.
CVE-2017-5898
The CCID Card device emulator support is vulnerable to an integer overflow flaw. It could occur while passing message via command/responses packets to and from the host.
A privileged user inside guest could use this flaw to crash the qemu-kvm process on the host resulting in a DoS.
This issue does not affect the qemu-kvm binaries in Debian but we apply the patch to the sources to stay in sync with the qemu package.
CVE-2017-5973
The USB xHCI controller emulator support in qemu-kvm is vulnerable to an infinite loop issue. It could occur while processing control transfer descriptors' sequence in xhci_kick_epctx.
A privileged user inside guest could use this flaw to crash the qemu-kvm process resulting in a DoS.
This update also updates the fix CVE-2016-9921 since it was too strict and broke certain guests.
For Debian 7 Wheezy, these problems have been fixed in version 1.1.2+dfsg-6+deb7u20.
We recommend that you upgrade your qemu-kvm packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");
script_tag(name:"affected", value:"'qemu-kvm' package(s) on Debian 7.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB7") {
if(!isnull(res = isdpkgvuln(pkg:"kvm", ver:"1:1.1.2+dfsg-6+deb7u20", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"qemu-kvm", ver:"1.1.2+dfsg-6+deb7u20", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"qemu-kvm-dbg", ver:"1.1.2+dfsg-6+deb7u20", rls:"DEB7"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8 High
AI Score
Confidence
Low
9 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
50.8%