6.5 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
AI Score
Confidence
High
3.3 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
38.9%
The remote host is missing an update for the Huawei EulerOS
# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.2.2022.2792");
script_cve_id("CVE-2022-2928", "CVE-2022-2929");
script_tag(name:"creation_date", value:"2022-12-09 04:14:25 +0000 (Fri, 09 Dec 2022)");
script_version("2024-02-05T14:36:57+0000");
script_tag(name:"last_modification", value:"2024-02-05 14:36:57 +0000 (Mon, 05 Feb 2024)");
script_tag(name:"cvss_base", value:"6.1");
script_tag(name:"cvss_base_vector", value:"AV:A/AC:L/Au:N/C:N/I:N/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-10-13 13:33:13 +0000 (Thu, 13 Oct 2022)");
script_name("Huawei EulerOS: Security Advisory for dhcp (EulerOS-SA-2022-2792)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("Huawei EulerOS Local Security Checks");
script_dependencies("gb_huawei_euleros_consolidation.nasl");
script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROS\-2\.0SP8");
script_xref(name:"Advisory-ID", value:"EulerOS-SA-2022-2792");
script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-2792");
script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'dhcp' package(s) announced via the EulerOS-SA-2022-2792 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.(CVE-2022-2928)
In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.(CVE-2022-2929)");
script_tag(name:"affected", value:"'dhcp' package(s) on Huawei EulerOS V2.0SP8.");
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-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "EULEROS-2.0SP8") {
if(!isnull(res = isrpmvuln(pkg:"dhcp-client", rpm:"dhcp-client~4.3.6~28.h18.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"dhcp-common", rpm:"dhcp-common~4.3.6~28.h18.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"dhcp-libs", rpm:"dhcp-libs~4.3.6~28.h18.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"dhcp-relay", rpm:"dhcp-relay~4.3.6~28.h18.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"dhcp-server", rpm:"dhcp-server~4.3.6~28.h18.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
6.5 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 High
AI Score
Confidence
High
3.3 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
38.9%