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
AI Score
Confidence
High
EPSS
Percentile
21.8%
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("1.3.6.1.4.1.25623.1.1.12.2023.6443.1");
script_cve_id("CVE-2023-42752", "CVE-2023-42755", "CVE-2023-42756", "CVE-2023-4881", "CVE-2023-5197");
script_tag(name:"creation_date", value:"2023-10-20 04:08:37 +0000 (Fri, 20 Oct 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:"5.7");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:S/C:P/I:P/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2023-10-11 16:23:47 +0000 (Wed, 11 Oct 2023)");
script_name("Ubuntu: Security Advisory (USN-6443-1)");
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=UBUNTU22\.04\ LTS");
script_xref(name:"Advisory-ID", value:"USN-6443-1");
script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-6443-1");
script_tag(name:"summary", value:"The remote host is missing an update for the 'linux-oem-6.1' package(s) announced via the USN-6443-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Kyle Zeng discovered that the networking stack implementation in the Linux
kernel did not properly validate skb object size in certain conditions. An
attacker could use this cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2023-42752)
Kyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP)
classifier implementation in the Linux kernel contained an out-of-bounds
read vulnerability. A local attacker could use this to cause a denial of
service (system crash). Please note that kernel packet classifier support
for RSVP has been removed to resolve this vulnerability. (CVE-2023-42755)
Kyle Zeng discovered that the netfilter subsystem in the Linux kernel
contained a race condition in IP set operations in certain situations. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2023-42756)
Alex Birnberg discovered that the netfilter subsystem in the Linux kernel
did not properly validate register length, leading to an out-of- bounds
write vulnerability. A local attacker could possibly use this to cause a
denial of service (system crash). (CVE-2023-4881)
Kevin Rich discovered that the netfilter subsystem in the Linux kernel did
not properly handle removal of rules from chain bindings in certain
circumstances, leading to a use-after-free vulnerability. A local attacker
could possibly use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2023-5197)");
script_tag(name:"affected", value:"'linux-oem-6.1' package(s) on Ubuntu 22.04.");
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 == "UBUNTU22.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"linux-image-6.1.0-1024-oem", ver:"6.1.0-1024.24", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-22.04", ver:"6.1.0.1024.25", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-22.04a", ver:"6.1.0.1024.25", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-22.04b", ver:"6.1.0.1024.25", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-oem-22.04c", ver:"6.1.0.1024.25", rls:"UBUNTU22.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
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
AI Score
Confidence
High
EPSS
Percentile
21.8%