SUSE SLES15 Security Update for libyang with multiple vulnerabilitie
Reporter | Title | Published | Views | Family All 47 |
---|---|---|---|---|
![]() | SUSE: Security Advisory (SUSE-SU-2022:3245-1) | 13 Sep 202200:00 | – | openvas |
![]() | openSUSE: Security Advisory for libyang (SUSE-SU-2022:3245-1) | 13 Sep 202200:00 | – | openvas |
![]() | Security update for libyang (important) | 12 Sep 202200:00 | – | suse |
![]() | GLSA-202107-54 : libyang: Multiple vulnerabilities | 24 Jan 202200:00 | – | nessus |
![]() | RHEL 8 : libyang (Unpatched Vulnerability) | 3 Jun 202400:00 | – | nessus |
![]() | RHEL 8 : libyang (Unpatched Vulnerability) | 11 May 202400:00 | – | nessus |
![]() | libyang: Multiple vulnerabilities | 24 Jul 202100:00 | – | gentoo |
![]() | Null pointer dereference | 20 May 202119:15 | – | prion |
![]() | Stack overflow | 20 May 202119:15 | – | prion |
![]() | Design/Logic Flaw | 20 May 202119:15 | – | prion |
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:3245-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(164976);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/14");
script_cve_id(
"CVE-2021-28902",
"CVE-2021-28903",
"CVE-2021-28904",
"CVE-2021-28906"
);
script_xref(name:"SuSE", value:"SUSE-SU-2022:3245-1");
script_name(english:"SUSE SLES15 Security Update : libyang (SUSE-SU-2022:3245-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2022:3245-1 advisory.
- In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of
retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of
retval->ext[r]->flags that results in a crash. (CVE-2021-28902)
- A stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem().
lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to crash.
(CVE-2021-28903)
- In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is
NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a
crash. (CVE-2021-28904)
- In function read_yin_leaf() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r]
is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results
in a crash. (CVE-2021-28906)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186374");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186375");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186376");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186378");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-28902");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-28903");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-28904");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-28906");
# https://lists.suse.com/pipermail/sle-security-updates/2022-September/012205.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8e8e8b0d");
script_set_attribute(attribute:"solution", value:
"Update the affected libyang-extentions and / or libyang1 packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:H/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:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-28906");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/05/20");
script_set_attribute(attribute:"patch_publication_date", value:"2022/09/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/09/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libyang-extentions");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libyang1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE 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/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES15|SLES_SAP15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES15 / SLES_SAP15', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP3/4", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP3/4", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'libyang-extentions-1.0.184-150300.3.6.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
{'reference':'libyang1-1.0.184-150300.3.6.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
{'reference':'libyang-extentions-1.0.184-150300.3.6.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'libyang1-1.0.184-150300.3.6.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'libyang-extentions-1.0.184-150300.3.6.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-server-applications-release-15.3', 'sles-release-15.3']},
{'reference':'libyang1-1.0.184-150300.3.6.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-server-applications-release-15.3', 'sles-release-15.3']},
{'reference':'libyang-extentions-1.0.184-150300.3.6.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-server-applications-release-15.4', 'sles-release-15.4']},
{'reference':'libyang1-1.0.184-150300.3.6.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-server-applications-release-15.4', 'sles-release-15.4']}
];
var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
check_flag++;
}
if (!check_flag) continue;
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'libyang-extentions / libyang1');
}
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