CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
90.2%
This update for liblouis fixes several issues. These security issues were fixed :
CVE-2017-13739: Prevent heap-based buffer overflow in the function resolveSubtable() that could have caused DoS or remote code execution (bsc#1056101)
CVE-2017-13740: Prevent stack-based buffer overflow in the function parseChars() that could have caused DoS or possibly unspecified other impact (bsc#1056097) ()
CVE-2017-13741: Prevent use-after-free in function compileBrailleIndicator() that allowed to cause remote DoS (bsc#1056095)
CVE_2017-13742: Prevent stack-based buffer overflow in function includeFile that allowed to cause remote DoS (bsc#1056093).
CVE-2017-13743: Prevent buffer overflow triggered in the function _lou_showString() that allowed to cause remote DoS (bsc#1056090)
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:2590-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(103564);
script_version("3.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2017-13739", "CVE-2017-13740", "CVE-2017-13741", "CVE-2017-13743");
script_name(english:"SUSE SLES11 Security Update : liblouis (SUSE-SU-2017:2590-1)");
script_summary(english:"Checks rpm output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote SUSE host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"This update for liblouis fixes several issues. These security issues
were fixed :
- CVE-2017-13739: Prevent heap-based buffer overflow in
the function resolveSubtable() that could have caused
DoS or remote code execution (bsc#1056101)
- CVE-2017-13740: Prevent stack-based buffer overflow in
the function parseChars() that could have caused DoS or
possibly unspecified other impact (bsc#1056097) ()
- CVE-2017-13741: Prevent use-after-free in function
compileBrailleIndicator() that allowed to cause remote
DoS (bsc#1056095)
- CVE_2017-13742: Prevent stack-based buffer overflow in
function includeFile that allowed to cause remote DoS
(bsc#1056093).
- CVE-2017-13743: Prevent buffer overflow triggered in the
function _lou_showString() that allowed to cause remote
DoS (bsc#1056090)
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1056090"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1056093"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1056095"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1056097"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1056101"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-13739/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-13740/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-13741/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-13743/"
);
# https://www.suse.com/support/update/announcement/2017/suse-su-20172590-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?04e59ea9"
);
script_set_attribute(
attribute:"solution",
value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-liblouis-13291=1
SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-liblouis-13291=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
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:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:liblouis");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:liblouis0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-louis");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/29");
script_set_attribute(attribute:"patch_publication_date", value:"2017/09/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/29");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"SuSE Local Security Checks");
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("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES11", sp:"4", reference:"liblouis-1.7.0-1.3.3.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"liblouis0-1.7.0-1.3.3.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"python-louis-1.7.0-1.3.3.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "liblouis");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13739
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13740
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13741
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13743
www.nessus.org/u?04e59ea9
bugzilla.suse.com/show_bug.cgi?id=1056090
bugzilla.suse.com/show_bug.cgi?id=1056093
bugzilla.suse.com/show_bug.cgi?id=1056095
bugzilla.suse.com/show_bug.cgi?id=1056097
bugzilla.suse.com/show_bug.cgi?id=1056101
www.suse.com/security/cve/CVE-2017-13739/
www.suse.com/security/cve/CVE-2017-13740/
www.suse.com/security/cve/CVE-2017-13741/
www.suse.com/security/cve/CVE-2017-13743/
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
90.2%