4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
7.1 High
AI Score
Confidence
Low
1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:H/Au:S/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
8.9%
The remote host is missing an update for the
# 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("1.3.6.1.4.1.25623.1.1.12.2023.6319.1");
script_cve_id("CVE-2023-20569");
script_tag(name:"creation_date", value:"2023-08-31 06:20:34 +0000 (Thu, 31 Aug 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:"3.8");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:S/C:C/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2023-09-14 17:42:56 +0000 (Thu, 14 Sep 2023)");
script_name("Ubuntu: Security Advisory (USN-6319-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2023 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(16\.04\ LTS|18\.04\ LTS|20\.04\ LTS|22\.04\ LTS|23\.04)");
script_xref(name:"Advisory-ID", value:"USN-6319-1");
script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-6319-1");
script_tag(name:"summary", value:"The remote host is missing an update for the 'amd64-microcode' package(s) announced via the USN-6319-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD
processors utilising speculative execution and branch prediction may allow
unauthorised memory reads via a speculative side-channel attack. A local
attacker could use this to expose sensitive information, including kernel
memory.");
script_tag(name:"affected", value:"'amd64-microcode' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 23.04.");
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 == "UBUNTU16.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"amd64-microcode", ver:"3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm2", rls:"UBUNTU16.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU18.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"amd64-microcode", ver:"3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm2", rls:"UBUNTU18.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU20.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"amd64-microcode", ver:"3.20191218.1ubuntu1.2", rls:"UBUNTU20.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU22.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"amd64-microcode", ver:"3.20191218.1ubuntu2.2", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU23.04") {
if(!isnull(res = isdpkgvuln(pkg:"amd64-microcode", ver:"3.20220411.1ubuntu3.2", rls:"UBUNTU23.04"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
7.1 High
AI Score
Confidence
Low
1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:H/Au:S/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
8.9%