CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
83.2%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.1.1.2.2016.571");
script_cve_id("CVE-2014-3672", "CVE-2016-3158", "CVE-2016-3159", "CVE-2016-3710", "CVE-2016-3712", "CVE-2016-3960", "CVE-2016-4480", "CVE-2016-6258");
script_tag(name:"creation_date", value:"2023-03-08 12:56:44 +0000 (Wed, 08 Mar 2023)");
script_version("2024-02-02T05:06:10+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"7.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/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:"2016-08-03 17:12:23 +0000 (Wed, 03 Aug 2016)");
script_name("Debian: Security Advisory (DLA-571-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2023 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-571-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2016/DLA-571-1");
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 'xen' package(s) announced via the DLA-571-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems:
CVE-2014-3672 (XSA-180) Andrew Sorensen discovered that a HVM domain can exhaust the hosts disk space by filling up the log file.
CVE-2016-3158 / CVE-2016-3159 (XSA-172) Jan Beulich from SUSE discovered that Xen does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors. A malicious domain can take advantage of this flaw to obtain address space usage and timing information, about another domain, at a fairly low rate.
CVE-2016-3710 (XSA-179) Wei Xiao and Qinghao Tang of 360.cn Inc discovered an out-of-bounds read and write flaw in the QEMU VGA module. A privileged guest user could use this flaw to execute arbitrary code on the host with the privileges of the hosting QEMU process.
CVE-2016-3712 (XSA-179) Zuozhi Fzz of Alibaba Inc discovered potential integer overflow or out-of-bounds read access issues in the QEMU VGA module. A privileged guest user could use this flaw to mount a denial of service (QEMU process crash).
CVE-2016-3960 (XSA-173) Ling Liu and Yihan Lian of the Cloud Security Team, Qihoo 360 discovered an integer overflow in the x86 shadow pagetable code. A HVM guest using shadow pagetables can cause the host to crash. A PV guest using shadow pagetables (i.e. being migrated) with PV superpages enabled (which is not the default) can crash the host, or corrupt hypervisor memory, potentially leading to privilege escalation.
CVE-2016-4480 (XSA-176) Jan Beulich discovered that incorrect page table handling could result in privilege escalation inside a Xen guest instance.
CVE-2016-6258 (XSA-182) Jeremie Boutoille discovered that incorrect pagetable handling in PV instances could result in guest to host privilege escalation.
Additionally this Xen Security Advisory without a CVE was fixed: XSA-166 Konrad Rzeszutek Wilk and Jan Beulich discovered that ioreq handling is possibly susceptible to a multiple read issue.
For Debian 7 Wheezy, these problems have been fixed in version 4.1.6.lts1-1.
We recommend that you upgrade your xen 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:"'xen' 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:"libxen-4.1", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libxen-dev", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libxen-ocaml", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libxen-ocaml-dev", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libxenstore3.0", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-docs-4.1", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-hypervisor-4.1-amd64", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-hypervisor-4.1-i386", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-system-amd64", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-system-i386", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-utils-4.1", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xen-utils-common", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"xenstore-utils", ver:"4.1.6.lts1-1", rls:"DEB7"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
83.2%