CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
74.6%
The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed :
CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782).
CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393).
CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123).
The update package also includes non-security fixes. See advisory for details.
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-2020:3507-1.
# The text itself is copyright (C) SUSE.
#
include('compat.inc');
if (description)
{
script_id(143856);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/05");
script_cve_id("CVE-2020-25668", "CVE-2020-25704", "CVE-2020-25705");
script_xref(name:"CEA-ID", value:"CEA-2020-0138");
script_name(english:"SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:3507-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various
security and bugfixes.
The following security bugs were fixed :
CVE-2020-25705: A flaw in the way reply ICMP packets are limited in
was found that allowed to quickly scan open UDP ports. This flaw
allowed an off-path remote user to effectively bypassing source port
UDP randomization. The highest threat from this vulnerability is to
confidentiality and possibly integrity, because software and services
that rely on UDP source port randomization (like DNS) are indirectly
affected as well. Kernel versions may be vulnerable to this issue
(bsc#1175721, bsc#1178782).
CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter()
(bsc#1178393).
CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123).
The update package also includes non-security fixes. See advisory for
details.
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=1058115");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1163592");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1167030");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1172873");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1175306");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1175721");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1176855");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1176907");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1176983");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177703");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177819");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177820");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178123");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178393");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178589");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178622");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178686");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178765");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1178782");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=927455");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25668/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25704/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-25705/");
# https://www.suse.com/support/update/announcement/2020/suse-su-20203507-1
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0d76aaec");
script_set_attribute(attribute:"solution", value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Workstation Extension 15-SP1 :
zypper in -t patch SUSE-SLE-Product-WE-15-SP1-2020-3507=1
SUSE Linux Enterprise Module for Live Patching 15-SP1 :
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2020-3507=1
SUSE Linux Enterprise Module for Legacy Software 15-SP1 :
zypper in -t patch SUSE-SLE-Module-Legacy-15-SP1-2020-3507=1
SUSE Linux Enterprise Module for Development Tools 15-SP1 :
zypper in -t patch
SUSE-SLE-Module-Development-Tools-15-SP1-2020-3507=1
SUSE Linux Enterprise Module for Basesystem 15-SP1 :
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-3507=1
SUSE Linux Enterprise High Availability 15-SP1 :
zypper in -t patch SUSE-SLE-Product-HA-15-SP1-2020-3507=1");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/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:H/PR:N/UI:N/S:U/C:H/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-25668");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-25705");
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:"2020/11/17");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/12/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-man");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-obs-build");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-obs-build-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:reiserfs-kmp-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:reiserfs-kmp-default-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
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) 2020-2024 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("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:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "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 == "SLES15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP1", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES15", sp:"1", cpu:"s390x", reference:"kernel-default-man-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"s390x", reference:"kernel-zfcpdump-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", cpu:"s390x", reference:"kernel-zfcpdump-debugsource-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-base-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-base-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-debugsource-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-devel-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-default-devel-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-obs-build-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-obs-build-debugsource-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"kernel-syms-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"reiserfs-kmp-default-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"reiserfs-kmp-default-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"s390x", reference:"kernel-default-man-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"s390x", reference:"kernel-zfcpdump-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", cpu:"s390x", reference:"kernel-zfcpdump-debugsource-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-base-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-base-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-debugsource-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-devel-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-default-devel-debuginfo-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-obs-build-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-obs-build-debugsource-4.12.14-197.72.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"kernel-syms-4.12.14-197.72.1")) 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, "kernel");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25668
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25704
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25705
www.nessus.org/u?0d76aaec
bugzilla.suse.com/show_bug.cgi?id=1058115
bugzilla.suse.com/show_bug.cgi?id=1163592
bugzilla.suse.com/show_bug.cgi?id=1167030
bugzilla.suse.com/show_bug.cgi?id=1172873
bugzilla.suse.com/show_bug.cgi?id=1175306
bugzilla.suse.com/show_bug.cgi?id=1175721
bugzilla.suse.com/show_bug.cgi?id=1176855
bugzilla.suse.com/show_bug.cgi?id=1176907
bugzilla.suse.com/show_bug.cgi?id=1176983
bugzilla.suse.com/show_bug.cgi?id=1177703
bugzilla.suse.com/show_bug.cgi?id=1177819
bugzilla.suse.com/show_bug.cgi?id=1177820
bugzilla.suse.com/show_bug.cgi?id=1178123
bugzilla.suse.com/show_bug.cgi?id=1178393
bugzilla.suse.com/show_bug.cgi?id=1178589
bugzilla.suse.com/show_bug.cgi?id=1178622
bugzilla.suse.com/show_bug.cgi?id=1178686
bugzilla.suse.com/show_bug.cgi?id=1178765
bugzilla.suse.com/show_bug.cgi?id=1178782
bugzilla.suse.com/show_bug.cgi?id=927455
www.suse.com/security/cve/CVE-2020-25668/
www.suse.com/security/cve/CVE-2020-25704/
www.suse.com/security/cve/CVE-2020-25705/
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
74.6%