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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
77.3%
This update for gnutls fixes the following issues :
GNUTLS-SA-2017-3 / CVE-2017-7869: An out-of-bounds write in OpenPGP certificate decoding was fixed (bsc#1034173)
CVE-2017-6891: A potential stack-based buffer overflow in the bundled libtasn1 was fixed (bsc#1040621)
An address read of 4 bytes past the end of buffer in OpenPGP certificate parsing was fixed (bsc#1038337)
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-2017:1886-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(101768);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2017-6891", "CVE-2017-7869");
script_name(english:"SUSE SLES11 Security Update : gnutls (SUSE-SU-2017:1886-1)");
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 gnutls fixes the following issues :
- GNUTLS-SA-2017-3 / CVE-2017-7869: An out-of-bounds write
in OpenPGP certificate decoding was fixed (bsc#1034173)
- CVE-2017-6891: A potential stack-based buffer overflow
in the bundled libtasn1 was fixed (bsc#1040621)
- An address read of 4 bytes past the end of buffer in
OpenPGP certificate parsing was fixed (bsc#1038337)
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=1034173"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1038337"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1040621"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-6891/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-7869/"
);
# https://www.suse.com/support/update/announcement/2017/suse-su-20171886-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?bbc63be8"
);
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 11-SP4:zypper in -t
patch sdksp4-gnutls-13212=1
SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-gnutls-13212=1
SUSE Linux Enterprise High Availability Extension 11-SP4:zypper in -t
patch slehasp4-gnutls-13212=1
SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-gnutls-13212=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:gnutls");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libgnutls-extra26");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libgnutls26");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/14");
script_set_attribute(attribute:"patch_publication_date", value:"2017/07/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/17");
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", cpu:"x86_64", reference:"libgnutls26-32bit-2.4.1-24.39.70.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"s390x", reference:"libgnutls26-32bit-2.4.1-24.39.70.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"gnutls-2.4.1-24.39.70.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"libgnutls-extra26-2.4.1-24.39.70.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"libgnutls26-2.4.1-24.39.70.1")) 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, "gnutls");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6891
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7869
www.nessus.org/u?bbc63be8
bugzilla.suse.com/show_bug.cgi?id=1034173
bugzilla.suse.com/show_bug.cgi?id=1038337
bugzilla.suse.com/show_bug.cgi?id=1040621
www.suse.com/security/cve/CVE-2017-6891/
www.suse.com/security/cve/CVE-2017-7869/
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
77.3%