CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
69.5%
The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1582-1 advisory.
A heap out-of-bounds write vulnerability in the Linux kernel’s Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event’s sibling_list is smaller than its child’s sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)
A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free. (CVE-2024-0775)
A use-after-free vulnerability in the Linux kernel’s netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660. (CVE-2024-1086)
In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems. (CVE-2024-26622)
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 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2024:1582-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(195471);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/30");
script_cve_id(
"CVE-2023-5717",
"CVE-2024-0775",
"CVE-2024-1086",
"CVE-2024-26622"
);
script_xref(name:"SuSE", value:"SUSE-SU-2024:1582-1");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2024/06/20");
script_name(english:"SUSE SLES15 Security Update : kernel (Live Patch 0 for SLE 15 SP5) (SUSE-SU-2024:1582-1)");
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 SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in
the SUSE-SU-2024:1582-1 advisory.
- A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)
component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an
event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory
locations outside of the allocated buffer. We recommend upgrading past commit
32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)
- A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This
flaw allows a local user to cause an information leak problem while freeing the old quota file names
before a potential failure, leading to a use-after-free. (CVE-2024-0775)
- A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to
achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error
within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when
NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit
f342de4e2f33e0e39165d8639387aa6c19dff660. (CVE-2024-1086)
- In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in
tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is
requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write()
requests can cause use-after-free-write and double-free problems. (CVE-2024-26622)
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/1216644");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1219079");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1219435");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1220828");
script_set_attribute(attribute:"see_also", value:"https://lists.suse.com/pipermail/sle-updates/2024-May/035219.html");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-5717");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-0775");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-1086");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2024-26622");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel-livepatch-5_14_21-150500_53-default and / or kernel-livepatch-5_3_18-150300_59_121-default
packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/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:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-1086");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/21");
script_set_attribute(attribute:"patch_publication_date", value:"2024/05/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-livepatch-5_14_21-150500_53-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-livepatch-5_3_18-150300_59_121-default");
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) 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('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)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES15', 'SUSE (' + os_ver + ')');
var uname_r = get_kb_item("Host/uname-r");
if (empty_or_null(uname_r)) audit(AUDIT_UNKNOWN_APP_VER, "kernel");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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 == "SLES15" && (! preg(pattern:"^(3|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP3/5", os_ver + " SP" + service_pack);
var kernel_live_checks = [
{
'kernels': {
'5.14.21-150500.53-default': {
'pkgs': [
{'reference':'kernel-livepatch-5_14_21-150500_53-default-11-150500.3.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-live-patching-release-15.5']}
]
},
'5.3.18-150300.59.121-default': {
'pkgs': [
{'reference':'kernel-livepatch-5_3_18-150300_59_121-default-13-150300.2.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-live-patching-release-15.3']}
]
}
}
}
];
var ltss_caveat_required = FALSE;
var flag = 0;
var kernel_affected = FALSE;
foreach var kernel_array ( kernel_live_checks ) {
var kpatch_details = kernel_array['kernels'][uname_r];
if (empty_or_null(kpatch_details)) continue;
kernel_affected = TRUE;
foreach var package_array ( kpatch_details['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;
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++;
}
}
# No kpatch details found for the running kernel version
if (!kernel_affected) audit(AUDIT_INST_VER_NOT_VULN, 'kernel', uname_r);
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel-livepatch-5_14_21-150500_53-default / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5717
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0775
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-1086
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26622
bugzilla.suse.com/1216644
bugzilla.suse.com/1219079
bugzilla.suse.com/1219435
bugzilla.suse.com/1220828
lists.suse.com/pipermail/sle-updates/2024-May/035219.html
www.suse.com/security/cve/CVE-2023-5717
www.suse.com/security/cve/CVE-2024-0775
www.suse.com/security/cve/CVE-2024-1086
www.suse.com/security/cve/CVE-2024-26622
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
69.5%