Fix a local vulnerability from a race condition in chown-recursive (CVE-2018-15687, #1643367)
Fix a local vulnerability from invalid handling of long lines in state deserialization (CVE-2018-15686, #1643372)
Fix a remote vulnerability in DHCPv6 in systemd-networkd (CVE-2018-15688, #1643362)
Downgrade logging of various messages and add loging in other places
Many many fixes in error handling and minor memory leaks and such
Fix typos and omissions in documentation
Various smaller improvements to unit ordering and dependencies
Handling of invalid (intentionally corrupt) dbus messages is improved, fixing potential local DOS avenues
The target of symlinks links in .wants/ and .requires/ is now ignored. This fixes an issue where the unit file would sometimes be loaded from such a symlink, leading to non-deterministic unit contents.
Filtering of kernel threads is improved. This fixes an issues with newer kernels where hybrid kernel/user threads are used by bpfilter.
Catalog entries for the journal are improved (#1639482)
No need to reboot or log out.
Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
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 Fedora Security Advisory FEDORA-2018-24bd6c9d4a.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(120295);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2018-15686", "CVE-2018-15687", "CVE-2018-15688");
script_xref(name:"FEDORA", value:"2018-24bd6c9d4a");
script_name(english:"Fedora 28 : systemd (2018-24bd6c9d4a)");
script_summary(english:"Checks rpm output for the updated package.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Fedora host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
" - Fix a local vulnerability from a race condition in
chown-recursive (CVE-2018-15687, #1643367)
- Fix a local vulnerability from invalid handling of long
lines in state deserialization (CVE-2018-15686,
#1643372)
- Fix a remote vulnerability in DHCPv6 in systemd-networkd
(CVE-2018-15688, #1643362)
- Downgrade logging of various messages and add loging in
other places
- Many many fixes in error handling and minor memory leaks
and such
- Fix typos and omissions in documentation
- Various smaller improvements to unit ordering and
dependencies
- Handling of invalid (intentionally corrupt) dbus
messages is improved, fixing potential local DOS avenues
- The target of symlinks links in .wants/ and .requires/
is now ignored. This fixes an issue where the unit file
would sometimes be loaded from such a symlink, leading
to non-deterministic unit contents.
- Filtering of kernel threads is improved. This fixes an
issues with newer kernels where hybrid kernel/user
threads are used by bpfilter.
- Catalog entries for the journal are improved (#1639482)
No need to reboot or log out.
Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2018-24bd6c9d4a"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected systemd package."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:systemd");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:28");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/26");
script_set_attribute(attribute:"patch_publication_date", value:"2018/11/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/03");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Fedora Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^28([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 28", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC28", reference:"systemd-238-10.git438ac26.fc28")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "systemd");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fedoraproject | fedora | systemd | p-cpe:/a:fedoraproject:fedora:systemd |
fedoraproject | fedora | 28 | cpe:/o:fedoraproject:fedora:28 |