CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS
Percentile
33.2%
The remote SUSE Linux SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3843-1 advisory.
There’s a flaw in OpenEXR’s deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability. (CVE-2021-3477)
An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits.
This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths. (CVE-2021-3933)
In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;
and chroma.green.y * (X + Z))) / d;
but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition which could affect the availability of programs linked with OpenEXR. (CVE-2021-3941)
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 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2021:3843-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(155802);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");
script_cve_id("CVE-2021-3477", "CVE-2021-3933", "CVE-2021-3941");
script_xref(name:"SuSE", value:"SUSE-SU-2021:3843-1");
script_name(english:"SUSE SLED12 / SLES12 Security Update : openexr (SUSE-SU-2021:3843-1)");
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 SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple
vulnerabilities as referenced in the SUSE-SU-2021:3843-1 advisory.
- There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker
who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow,
subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application
availability. (CVE-2021-3477)
- An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits.
This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with
application stability or lead to other attack paths. (CVE-2021-3933)
- In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 -
chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the
divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition
which could affect the availability of programs linked with OpenEXR. (CVE-2021-3941)
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/1184353");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1192498");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1192556");
script_set_attribute(attribute:"see_also", value:"https://lists.suse.com/pipermail/sle-updates/2021-December/020879.html");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3477");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3933");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3941");
script_set_attribute(attribute:"solution", value:
"Update the affected libIlmImf-Imf_2_1-21, libIlmImf-Imf_2_1-21-32bit, openexr and / or openexr-devel packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/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-2021-3933");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-3941");
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:"2021/03/31");
script_set_attribute(attribute:"patch_publication_date", value:"2021/12/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/02");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImf-Imf_2_1-21");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libIlmImf-Imf_2_1-21-32bit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openexr-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
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) 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/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:"^(SLED12|SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED12 / SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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 == "SLED12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP5", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'libIlmImf-Imf_2_1-21-2.1.0-6.42.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'openexr-2.1.0-6.42.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'openexr-devel-2.1.0-6.42.1', 'sp':'5', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
{'reference':'openexr-devel-2.1.0-6.42.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
{'reference':'libIlmImf-Imf_2_1-21-32bit-2.1.0-6.42.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-12.5']},
{'reference':'libIlmImf-Imf_2_1-21-32bit-2.1.0-6.42.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-12.5']},
{'reference':'libIlmImf-Imf_2_1-21-2.1.0-6.42.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'openexr-2.1.0-6.42.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']}
];
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, 'libIlmImf-Imf_2_1-21 / libIlmImf-Imf_2_1-21-32bit / openexr / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3477
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3933
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3941
bugzilla.suse.com/1184353
bugzilla.suse.com/1192498
bugzilla.suse.com/1192556
lists.suse.com/pipermail/sle-updates/2021-December/020879.html
www.suse.com/security/cve/CVE-2021-3477
www.suse.com/security/cve/CVE-2021-3933
www.suse.com/security/cve/CVE-2021-3941
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS
Percentile
33.2%