6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
0.004 Low
EPSS
Percentile
72.0%
According to the versions of the pcre2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT. (CVE-2022-1586)
An out-of-bounds read vulnerability was discovered in the PCRE2 library in the get_recurse_data_length() function of the pcre2_jit_compile.c file. This issue affects recursions in JIT-compiled regular expressions caused by duplicate data transfers. (CVE-2022-1587)
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.
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(162458);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/19");
script_cve_id("CVE-2022-1586", "CVE-2022-1587");
script_name(english:"EulerOS 2.0 SP8 : pcre2 (EulerOS-SA-2022-1945)");
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 pcre2 packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :
- An out-of-bounds read vulnerability was discovered in the PCRE2 library in the
compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property
matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully
read in case-less matching within JIT. (CVE-2022-1586)
- An out-of-bounds read vulnerability was discovered in the PCRE2 library in the get_recurse_data_length()
function of the pcre2_jit_compile.c file. This issue affects recursions in JIT-compiled regular
expressions caused by duplicate data transfers. (CVE-2022-1587)
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-2022-1945
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?62c95345");
script_set_attribute(attribute:"solution", value:
"Update the affected pcre2 packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:F/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:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-1587");
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:"2022/05/11");
script_set_attribute(attribute:"patch_publication_date", value:"2022/06/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/06/22");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pcre2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pcre2-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pcre2-utf16");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pcre2-utf32");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
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/sp");
script_exclude_keys("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 (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");
var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);
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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
var flag = 0;
var pkgs = [
"pcre2-10.32-3.h3.eulerosv2r8",
"pcre2-devel-10.32-3.h3.eulerosv2r8",
"pcre2-utf16-10.32-3.h3.eulerosv2r8",
"pcre2-utf32-10.32-3.h3.eulerosv2r8"
];
foreach (var pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"8", 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, "pcre2");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | pcre2 | p-cpe:/a:huawei:euleros:pcre2 |
huawei | euleros | pcre2-devel | p-cpe:/a:huawei:euleros:pcre2-devel |
huawei | euleros | pcre2-utf16 | p-cpe:/a:huawei:euleros:pcre2-utf16 |
huawei | euleros | pcre2-utf32 | p-cpe:/a:huawei:euleros:pcre2-utf32 |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
0.004 Low
EPSS
Percentile
72.0%