3.6 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:N/A:P
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
0.001 Low
EPSS
Percentile
26.7%
This update for libXfont fixes several issues. These security issues were fixed :
CVE-2017-13720: Improper check for end of string in PatterMatch caused invalid reads (bsc#1054285)
CVE-2017-13722: Malformed PCF file could have caused DoS or leak information (bsc#1049692)
Prevent the X server from accessing arbitrary files as root. It is not possible to leak information, but special files can be touched allowing for causing side effects (bsc#1050459)
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.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0334-1.
# The text itself is copyright (C) SUSE.
#
include("compat.inc");
if (description)
{
script_id(106576);
script_version("3.5");
script_cvs_date("Date: 2019/09/10 13:51:46");
script_cve_id("CVE-2017-13720", "CVE-2017-13722");
script_name(english:"SUSE SLED12 / SLES12 Security Update : libXfont (SUSE-SU-2018:0334-1)");
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 libXfont fixes several issues. These security issues
were fixed :
- CVE-2017-13720: Improper check for end of string in
PatterMatch caused invalid reads (bsc#1054285)
- CVE-2017-13722: Malformed PCF file could have caused DoS
or leak information (bsc#1049692)
- Prevent the X server from accessing arbitrary files as
root. It is not possible to leak information, but
special files can be touched allowing for causing side
effects (bsc#1050459)
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=1049692"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1050459"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1054285"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-13720/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-13722/"
);
# https://www.suse.com/support/update/announcement/2018/suse-su-20180334-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?8e5ab0cd"
);
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 Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-230=1
SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2018-230=1
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2018-230=1
SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-230=1
SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-230=1
SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2018-230=1
SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2018-230=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/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:U/C:H/I:N/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:libXfont-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libXfont1");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libXfont1-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/11");
script_set_attribute(attribute:"patch_publication_date", value:"2018/02/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/02");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2019 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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "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 == "SLES12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2/3", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"libXfont-debugsource-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libXfont1-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libXfont1-debuginfo-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libXfont-debugsource-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libXfont1-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libXfont1-debuginfo-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libXfont-debugsource-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libXfont1-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libXfont1-debuginfo-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libXfont-debugsource-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libXfont1-1.5.1-11.3.12")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libXfont1-debuginfo-1.5.1-11.3.12")) flag++;
if (flag)
{
if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
else security_note(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libXfont");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | libxfont-debugsource | p-cpe:/a:novell:suse_linux:libxfont-debugsource |
novell | suse_linux | libxfont1 | p-cpe:/a:novell:suse_linux:libxfont1 |
novell | suse_linux | libxfont1-debuginfo | p-cpe:/a:novell:suse_linux:libxfont1-debuginfo |
novell | suse_linux | 12 | cpe:/o:novell:suse_linux:12 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13720
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13722
www.nessus.org/u?8e5ab0cd
bugzilla.suse.com/show_bug.cgi?id=1049692
bugzilla.suse.com/show_bug.cgi?id=1050459
bugzilla.suse.com/show_bug.cgi?id=1054285
www.suse.com/security/cve/CVE-2017-13720/
www.suse.com/security/cve/CVE-2017-13722/
3.6 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:N/A:P
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
0.001 Low
EPSS
Percentile
26.7%