The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3843-1 advisory.
OpenSSL supports creating a custom cipher via the legacy EVP_CIPHER_meth_new() function and associated function calls. This function was deprecated in OpenSSL 3.0 and application authors are instead encouraged to use the new provider mechanism in order to implement custom ciphers. OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and EVP_CipherInit_ex2() functions (as well as other similarly named encryption and decryption initialisation functions). Instead of using the custom cipher directly it incorrectly tries to fetch an equivalent cipher from the available providers. An equivalent cipher is found based on the NID passed to EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a given cipher. However it is possible for an application to incorrectly pass NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef is used in this way the OpenSSL encryption/decryption initialisation function will match the NULL cipher as being equivalent and will fetch this from the available providers.
This will succeed if the default provider has been loaded (or if a third party provider has been loaded that offers this cipher). Using the NULL cipher means that the plaintext is emitted as the ciphertext.
Applications are only affected by this issue if they call EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an encryption/decryption initialisation function. Applications that only use SSL/TLS are not impacted by this issue. Fixed in OpenSSL 3.0.6 (Affected 3.0.0-3.0.5). (CVE-2022-3358)
A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server.
In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6). (CVE-2022-3602)
A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.’ character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. (CVE-2022-3786)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:3843-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(166796);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");
script_cve_id("CVE-2022-3358", "CVE-2022-3602", "CVE-2022-3786");
script_xref(name:"SuSE", value:"SUSE-SU-2022:3843-1");
script_xref(name:"CEA-ID", value:"CEA-2022-0036");
script_xref(name:"IAVA", value:"2022-A-0452-S");
script_name(english:"SUSE SLED15 / SLES15 Security Update : openssl-3 (SUSE-SU-2022:3843-1)");
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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by
multiple vulnerabilities as referenced in the SUSE-SU-2022:3843-1 advisory.
- OpenSSL supports creating a custom cipher via the legacy EVP_CIPHER_meth_new() function and associated
function calls. This function was deprecated in OpenSSL 3.0 and application authors are instead encouraged
to use the new provider mechanism in order to implement custom ciphers. OpenSSL versions 3.0.0 to 3.0.5
incorrectly handle legacy custom ciphers passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and
EVP_CipherInit_ex2() functions (as well as other similarly named encryption and decryption initialisation
functions). Instead of using the custom cipher directly it incorrectly tries to fetch an equivalent cipher
from the available providers. An equivalent cipher is found based on the NID passed to
EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a given cipher. However it is
possible for an application to incorrectly pass NID_undef as this value in the call to
EVP_CIPHER_meth_new(). When NID_undef is used in this way the OpenSSL encryption/decryption initialisation
function will match the NULL cipher as being equivalent and will fetch this from the available providers.
This will succeed if the default provider has been loaded (or if a third party provider has been loaded
that offers this cipher). Using the NULL cipher means that the plaintext is emitted as the ciphertext.
Applications are only affected by this issue if they call EVP_CIPHER_meth_new() using NID_undef and
subsequently use it in a call to an encryption/decryption initialisation function. Applications that only
use SSL/TLS are not impacted by this issue. Fixed in OpenSSL 3.0.6 (Affected 3.0.0-3.0.5). (CVE-2022-3358)
- A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint
checking. Note that this occurs after certificate chain signature verification and requires either a CA to
have signed the malicious certificate or for the application to continue certificate verification despite
failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to
overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash
(causing a denial of service) or potentially remote code execution. Many platforms implement stack
overflow protections which would mitigate against the risk of remote code execution. The risk may be
further mitigated based on stack layout for any given platform/compiler. Pre-announcements of
CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors
described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new
version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server.
In a TLS server, this can be triggered if the server requests client authentication and a malicious client
connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6). (CVE-2022-3602)
- A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint
checking. Note that this occurs after certificate chain signature verification and requires either a CA to
have signed a malicious certificate or for an application to continue certificate verification despite
failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a
certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the
stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this
can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server
requests client authentication and a malicious client connects. (CVE-2022-3786)
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/1204226");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1204714");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3358");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3602");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-3786");
# https://lists.suse.com/pipermail/sle-security-updates/2022-November/012796.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f5ded111");
script_set_attribute(attribute:"solution", value:
"Update the affected libopenssl-3-devel, libopenssl3 and / or openssl-3 packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
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:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-3358");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/09/29");
script_set_attribute(attribute:"patch_publication_date", value:"2022/11/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/02");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl-3-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
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:"^(SLED15|SLED_SAP15|SLES15|SLES_SAP15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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 == "SLED15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP4", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP15 SP4", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP4", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP4", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'libopenssl-3-devel-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'libopenssl-3-devel-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'libopenssl3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'libopenssl3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'openssl-3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'openssl-3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
{'reference':'libopenssl-3-devel-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
{'reference':'libopenssl-3-devel-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
{'reference':'libopenssl3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
{'reference':'libopenssl3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
{'reference':'openssl-3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-basesystem-release-15.4', 'sled-release-15.4', 'sles-release-15.4']},
{'reference':'openssl-3-3.0.1-150400.4.11.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.4', 'sle-module-basesystem-release-15.4', 'sled-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_HOLE,
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, 'libopenssl-3-devel / libopenssl3 / openssl-3');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3358
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3602
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3786
www.nessus.org/u?f5ded111
bugzilla.suse.com/1204226
bugzilla.suse.com/1204714
www.suse.com/security/cve/CVE-2022-3358
www.suse.com/security/cve/CVE-2022-3602
www.suse.com/security/cve/CVE-2022-3786