According to the versions of the unbound packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session.(CVE-2019-25031)
Unbound before 1.9.5 allows an integer overflow in the regional allocator via regional_alloc.(CVE-2019-25032)
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro.(CVE-2019-25033)
Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write.(CVE-2019-25034)
Unbound before 1.9.5 allows an out-of-bounds write in sldns_bget_token_par.(CVE-2019-25035)
Unbound before 1.9.5 allows an assertion failure and denial of service in synth_cname.(CVE-2019-25036)
Unbound before 1.9.5 allows an assertion failure and denial of service in dname_pkt_copy via an invalid packet.(CVE-2019-25037)
Unbound before 1.9.5 allows an integer overflow in a size calculation in dnscrypt/dnscrypt.c.(CVE-2019-25038)
Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c.(CVE-2019-25039)
Unbound before 1.9.5 allows an infinite loop via a compressed name in dname_pkt_copy.(CVE-2019-25040)
Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy.(CVE-2019-25041)
Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy.(CVE-2019-25042)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(152307);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/06");
script_cve_id(
"CVE-2019-25031",
"CVE-2019-25032",
"CVE-2019-25033",
"CVE-2019-25034",
"CVE-2019-25035",
"CVE-2019-25036",
"CVE-2019-25037",
"CVE-2019-25038",
"CVE-2019-25039",
"CVE-2019-25040",
"CVE-2019-25041",
"CVE-2019-25042"
);
script_name(english:"EulerOS 2.0 SP9 : unbound (EulerOS-SA-2021-2285)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the unbound packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :
- Unbound before 1.9.5 allows configuration injection in
create_unbound_ad_servers.sh upon a successful
man-in-the-middle attack against a cleartext HTTP
session.(CVE-2019-25031)
- Unbound before 1.9.5 allows an integer overflow in the
regional allocator via regional_alloc.(CVE-2019-25032)
- Unbound before 1.9.5 allows an integer overflow in the
regional allocator via the ALIGN_UP
macro.(CVE-2019-25033)
- Unbound before 1.9.5 allows an integer overflow in
sldns_str2wire_dname_buf_origin, leading to an
out-of-bounds write.(CVE-2019-25034)
- Unbound before 1.9.5 allows an out-of-bounds write in
sldns_bget_token_par.(CVE-2019-25035)
- Unbound before 1.9.5 allows an assertion failure and
denial of service in synth_cname.(CVE-2019-25036)
- Unbound before 1.9.5 allows an assertion failure and
denial of service in dname_pkt_copy via an invalid
packet.(CVE-2019-25037)
- Unbound before 1.9.5 allows an integer overflow in a
size calculation in
dnscrypt/dnscrypt.c.(CVE-2019-25038)
- Unbound before 1.9.5 allows an integer overflow in a
size calculation in respip/respip.c.(CVE-2019-25039)
- Unbound before 1.9.5 allows an infinite loop via a
compressed name in dname_pkt_copy.(CVE-2019-25040)
- Unbound before 1.9.5 allows an assertion failure via a
compressed name in dname_pkt_copy.(CVE-2019-25041)
- Unbound before 1.9.5 allows an out-of-bounds write via
a compressed name in rdata_copy.(CVE-2019-25042)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2285
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e777f56d");
script_set_attribute(attribute:"solution", value:
"Update the affected unbound packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-25042");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"patch_publication_date", value:"2021/08/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/08/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-unbound");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:unbound");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:unbound-libs");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(9)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
flag = 0;
pkgs = ["python3-unbound-1.7.3-18.h6.eulerosv2r9",
"unbound-1.7.3-18.h6.eulerosv2r9",
"unbound-libs-1.7.3-18.h6.eulerosv2r9"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"9", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "unbound");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25031
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25032
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25033
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25034
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25035
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25036
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25037
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25038
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25039
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25040
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25041
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25042
www.nessus.org/u?e777f56d