The remote SUSE Linux SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2834-1 advisory.
A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the DestPos variable, which allows the attacker to write out of bounds when setting Mem[DestPos]. (CVE-2012-6706)
UnRAR before 5.5.7 allows remote attackers to bypass a directory-traversal protection mechanism via vectors involving a symlink to the . directory, a symlink to the … directory, and a regular file.
(CVE-2017-12938)
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode call within the Archive::ReadHeader15 function. (CVE-2017-12940)
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function.
(CVE-2017-12941)
libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function. (CVE-2017-12942)
UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile). (CVE-2017-20006)
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-2021:2834-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(152833);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");
script_cve_id(
"CVE-2012-6706",
"CVE-2017-12938",
"CVE-2017-12940",
"CVE-2017-12941",
"CVE-2017-12942",
"CVE-2017-20006"
);
script_xref(name:"SuSE", value:"SUSE-SU-2021:2834-1");
script_name(english:"SUSE SLED12 / SLES12 Security Update : unrar (SUSE-SU-2021:2834-1)");
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-2021:2834-1 advisory.
- A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat
Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer
overflow can be caused in DataSize+CurChannel. The result is a negative value of the DestPos variable,
which allows the attacker to write out of bounds when setting Mem[DestPos]. (CVE-2012-6706)
- UnRAR before 5.5.7 allows remote attackers to bypass a directory-traversal protection mechanism via
vectors involving a symlink to the . directory, a symlink to the .. directory, and a regular file.
(CVE-2017-12938)
- libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode call within the
Archive::ReadHeader15 function. (CVE-2017-12940)
- libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function.
(CVE-2017-12941)
- libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function. (CVE-2017-12942)
- UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from
Unpack::Unpack5 and CmdExtract::ExtractCurrentFile). (CVE-2017-20006)
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/1046882");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1054038");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1187974");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2012-6706");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-12938");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-12940");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-12941");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-12942");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-20006");
# https://lists.suse.com/pipermail/sle-security-updates/2021-August/009355.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d0786678");
script_set_attribute(attribute:"solution", value:
"Update the affected libunrar-devel, libunrar5_6_1 and / or unrar packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
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:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-6706");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2017-12942");
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:"2017/06/22");
script_set_attribute(attribute:"patch_publication_date", value:"2021/08/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/08/26");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libunrar-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libunrar5_6_1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:unrar");
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)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES12" && (! preg(pattern:"^(2|3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP2/3/4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP3/4/5", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'unrar-5.6.1-4.5.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.3']},
{'reference':'unrar-5.6.1-4.5.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'unrar-5.6.1-4.5.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'libunrar-devel-5.6.1-4.5.1', 'sp':'5', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
{'reference':'libunrar-devel-5.6.1-4.5.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
{'reference':'libunrar5_6_1-5.6.1-4.5.1', 'sp':'5', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
{'reference':'libunrar5_6_1-5.6.1-4.5.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5']},
{'reference':'unrar-5.6.1-4.5.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
{'reference':'unrar-5.6.1-4.5.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.3']},
{'reference':'unrar-5.6.1-4.5.1', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.3']},
{'reference':'unrar-5.6.1-4.5.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'unrar-5.6.1-4.5.1', '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;
if ('ltss' >< tolower(check)) ltss_caveat_required = TRUE;
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)
{
var ltss_plugin_caveat = NULL;
if(ltss_caveat_required) ltss_plugin_caveat = '\n' +
'NOTE: This vulnerability check contains fixes that apply to\n' +
'packages only available in SUSE Enterprise Linux Server LTSS\n' +
'repositories. Access to these package security updates require\n' +
'a paid SUSE LTSS subscription.\n';
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + ltss_plugin_caveat
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libunrar-devel / libunrar5_6_1 / unrar');
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | libunrar-devel | p-cpe:/a:novell:suse_linux:libunrar-devel |
novell | suse_linux | libunrar5_6_1 | p-cpe:/a:novell:suse_linux:libunrar5_6_1 |
novell | suse_linux | unrar | p-cpe:/a:novell:suse_linux:unrar |
novell | suse_linux | 12 | cpe:/o:novell:suse_linux:12 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6706
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12938
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12940
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12941
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12942
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-20006
www.nessus.org/u?d0786678
bugzilla.suse.com/1046882
bugzilla.suse.com/1054038
bugzilla.suse.com/1187974
www.suse.com/security/cve/CVE-2012-6706
www.suse.com/security/cve/CVE-2017-12938
www.suse.com/security/cve/CVE-2017-12940
www.suse.com/security/cve/CVE-2017-12941
www.suse.com/security/cve/CVE-2017-12942
www.suse.com/security/cve/CVE-2017-20006