According to the versions of the glibc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.
(CVE-2021-27645)
DISPUTED In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious ‘\0’ character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states ‘the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there’s no security impact to the bug.’ (CVE-2021-43396)
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 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(165873);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/10");
script_cve_id("CVE-2021-27645", "CVE-2021-43396");
script_name(english:"EulerOS Virtualization 3.0.6.6 : glibc (EulerOS-SA-2022-2501)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the glibc packages installed, the EulerOS Virtualization installation on the remote host is
affected by the following vulnerabilities :
- The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when
processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in
degraded service or Denial of Service on the local system. This is related to netgroupcache.c.
(CVE-2021-27645)
- ** DISPUTED ** In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can
force iconv() to emit a spurious '\0' character via crafted ISO-2022-JP-3 data that is accompanied by an
internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states
'the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which
ought to require a separate application bug to do so unintentionally. Hence there's no security impact to
the bug.' (CVE-2021-43396)
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-2022-2501
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3f53d110");
script_set_attribute(attribute:"solution", value:
"Update the affected glibc packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-43396");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/24");
script_set_attribute(attribute:"patch_publication_date", value:"2022/10/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/10/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-utils");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nscd");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.6.6");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");
exit(0);
}
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.6.6") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.6.6");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
var flag = 0;
var pkgs = [
"glibc-2.17-222.h52.eulerosv2r7",
"glibc-common-2.17-222.h52.eulerosv2r7",
"glibc-devel-2.17-222.h52.eulerosv2r7",
"glibc-headers-2.17-222.h52.eulerosv2r7",
"glibc-static-2.17-222.h52.eulerosv2r7",
"glibc-utils-2.17-222.h52.eulerosv2r7",
"nscd-2.17-222.h52.eulerosv2r7"
];
foreach (var pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "glibc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | glibc | p-cpe:/a:huawei:euleros:glibc |
huawei | euleros | glibc-common | p-cpe:/a:huawei:euleros:glibc-common |
huawei | euleros | glibc-devel | p-cpe:/a:huawei:euleros:glibc-devel |
huawei | euleros | glibc-headers | p-cpe:/a:huawei:euleros:glibc-headers |
huawei | euleros | glibc-static | p-cpe:/a:huawei:euleros:glibc-static |
huawei | euleros | glibc-utils | p-cpe:/a:huawei:euleros:glibc-utils |
huawei | euleros | nscd | p-cpe:/a:huawei:euleros:nscd |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:3.0.6.6 |