7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.9 Medium
AI Score
Confidence
Low
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
28.3%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.845030");
script_cve_id("CVE-2020-26558", "CVE-2021-0129", "CVE-2021-28691", "CVE-2021-3564", "CVE-2021-3573", "CVE-2021-3587");
script_tag(name:"creation_date", value:"2021-08-18 07:49:36 +0000 (Wed, 18 Aug 2021)");
script_version("2024-02-02T05:06:08+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:08 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"6.9");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-08-24 19:21:41 +0000 (Tue, 24 Aug 2021)");
script_name("Ubuntu: Security Advisory (USN-5046-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("Ubuntu Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(20\.04\ LTS|21\.04)");
script_xref(name:"Advisory-ID", value:"USN-5046-1");
script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-5046-1");
script_tag(name:"summary", value:"The remote host is missing an update for the 'linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-raspi' package(s) announced via the USN-5046-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"It was discovered that the bluetooth subsystem in the Linux kernel did not
properly perform access control. An authenticated attacker could possibly
use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)
Michael Brown discovered that the Xen netback driver in the Linux kernel
did not properly handle malformed packets from a network PV frontend,
leading to a use-after-free vulnerability. An attacker in a guest VM could
use this to cause a denial of service or possibly execute arbitrary code.
(CVE-2021-28691)
It was discovered that the bluetooth subsystem in the Linux kernel did not
properly handle HCI device initialization failure, leading to a double-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2021-3564)
It was discovered that the bluetooth subsystem in the Linux kernel did not
properly handle HCI device detach events, leading to a use-after-free
vulnerability. An attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2021-3573)
It was discovered that the NFC implementation in the Linux kernel did not
properly handle failed connect events leading to a NULL pointer
dereference. A local attacker could use this to cause a denial of service.
(CVE-2021-3587)");
script_tag(name:"affected", value:"'linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-raspi' package(s) on Ubuntu 20.04, Ubuntu 21.04.");
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 == "UBUNTU20.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-27-generic", ver:"5.11.0-27.29~20.04.1", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-27-generic-64k", ver:"5.11.0-27.29~20.04.1", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-27-generic-lpae", ver:"5.11.0-27.29~20.04.1", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-27-lowlatency", ver:"5.11.0-27.29~20.04.1", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-64k-hwe-20.04", ver:"5.11.0.27.29~20.04.11", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-hwe-20.04", ver:"5.11.0.27.29~20.04.11", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae-hwe-20.04", ver:"5.11.0.27.29~20.04.11", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency-hwe-20.04", ver:"5.11.0.27.29~20.04.11", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual-hwe-20.04", ver:"5.11.0.27.29~20.04.11", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU21.04") {
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1013-azure", ver:"5.11.0-1013.14", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1014-kvm", ver:"5.11.0-1014.15", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1016-aws", ver:"5.11.0-1016.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1016-oracle", ver:"5.11.0-1016.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1016-raspi", ver:"5.11.0-1016.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1016-raspi-nolpae", ver:"5.11.0-1016.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-1017-gcp", ver:"5.11.0-1017.19", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-31-generic", ver:"5.11.0-31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-31-generic-64k", ver:"5.11.0-31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-31-generic-lpae", ver:"5.11.0-31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.11.0-31-lowlatency", ver:"5.11.0-31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-aws", ver:"5.11.0.1016.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-azure", ver:"5.11.0.1013.14", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-gcp", ver:"5.11.0.1017.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic", ver:"5.11.0.31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-64k", ver:"5.11.0.31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae", ver:"5.11.0.31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-gke", ver:"5.11.0.1017.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-kvm", ver:"5.11.0.1014.15", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency", ver:"5.11.0.31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-20.04", ver:"5.11.0.31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-oracle", ver:"5.11.0.1016.17", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi", ver:"5.11.0.1016.14", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi-nolpae", ver:"5.11.0.1016.14", rls:"UBUNTU21.04"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual", ver:"5.11.0.31.33", rls:"UBUNTU21.04"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.9 Medium
AI Score
Confidence
Low
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
28.3%