SUSE: Security Advisory (SUSE-SU-2021:2423-1)

# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.4.2021.2423.1");
  script_cve_id("CVE-2021-33910");
  script_tag(name:"creation_date", value:"2021-07-22 02:21:52 +0000 (Thu, 22 Jul 2021)");
  script_version("2025-08-15T15:42:25+0000");
  script_tag(name:"last_modification", value:"2025-08-15 15:42:25 +0000 (Fri, 15 Aug 2025)");
  script_tag(name:"cvss_base", value:"4.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-29 17:50:01 +0000 (Thu, 29 Jul 2021)");

  script_name("SUSE: Security Advisory (SUSE-SU-2021:2423-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES12\.0SP2|SLES12\.0SP3|SLES12\.0SP4)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2021:2423-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2021/suse-su-20212423-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1178561");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1184761");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1184967");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1185046");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1185331");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1185807");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1188063");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2021-July/009184.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'systemd' package(s) announced via the SUSE-SU-2021:2423-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This update for systemd fixes the following issues:

Security issues fixed:

- CVE-2021-33910: Fixed a denial of service (stack exhaustion) in systemd (PID 1) (bsc#1188063)

Other fixes:

- mount-util: shorten the loop a bit (#7545)
- mount-util: do not use the official MAX_HANDLE_SZ (#7523)
- mount-util: tape over name_to_handle_at() flakiness (#7517) (bsc#1184761)
- mount-util: fix bad indenting
- mount-util: EOVERFLOW might have other causes than buffer size issues
- mount-util: fix error propagation in fd_fdinfo_mnt_id()
- mount-util: drop exponential buffer growing in name_to_handle_at_loop()
- udev: port udev_has_devtmpfs() to use path_get_mnt_id()
- mount-util: add new path_get_mnt_id() call that queries the mnt ID of a path
- mount-util: add name_to_handle_at_loop() wrapper around name_to_handle_at()
- mount-util: accept that name_to_handle_at() might fail with EPERM (#5499)
- basic: fallback to the fstat if we don't have access to the /proc/self/fdinfo
- sysusers: use the usual comment style
- test/TEST-21-SYSUSERS: add tests for new functionality
- sysusers: allow admin/runtime overrides to command-line config
- basic/strv: add function to insert items at position
- sysusers: allow the shell to be specified
- sysusers: move various user credential validity checks to src/basic/
- man: reformat table in sysusers.d(5)
- sysusers: take configuration as positional arguments
- sysusers: emit a bit more info at debug level when locking fails
- sysusers: allow force reusing existing user/group IDs (#8037)
- sysusers: ensure GID in uid:gid syntax exists
- sysusers: make ADD_GROUP always create a group
- test: add TEST-21-SYSUSERS test
- sysuser: use OrderedHashmap
- sysusers: allow uid:gid in sysusers.conf files
- sysusers: fix memleak (#4430)
- These commits implement the option '--replace' for systemd-sysusers
 so %sysusers_create_package can be introduced in SLE and packages
 can rely on this rpm macro without wondering whether the macro is
 available on the different target the package is submitted to.
- Expect 644 permissions for /usr/lib/udev/compat-symlink-generation (bsc#1185807)
- systemctl: add --value option
- execute: make sure to call into PAM after initializing resource limits (bsc#1184967)
- rlimit-util: introduce setrlimit_closest_all()
- system-conf: drop reference to ShutdownWatchdogUsec=
- core: rename ShutdownWatchdogSec to RebootWatchdogSec (bsc#1185331)
- Return -EAGAIN instead of -EALREADY from unit_reload (bsc#1185046)
- rules: don't ignore Xen virtual interfaces anymore (bsc#1178561)
- write_net_rules: set execute bits (bsc#1178561)
- udev: rework network device renaming
- Revert 'Revert 'udev: network device renaming - immediately give up if the target name isn't available''");

  script_tag(name:"affected", value:"'systemd' package(s) on SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server 12-SP3, SUSE Linux Enterprise Server 12-SP4, SUSE Linux Enterprise Server for SAP Applications 12-SP3, SUSE Linux Enterprise Server for SAP Applications 12-SP4.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "SLES12.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"libsystemd0", rpm:"libsystemd0~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libsystemd0-32bit", rpm:"libsystemd0-32bit~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev1", rpm:"libudev1~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev1-32bit", rpm:"libudev1-32bit~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd", rpm:"systemd~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-32bit", rpm:"systemd-32bit~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-bash-completion", rpm:"systemd-bash-completion~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-devel", rpm:"systemd-devel~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-sysvinit", rpm:"systemd-sysvinit~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"udev", rpm:"udev~228~150.98.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "SLES12.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"libsystemd0", rpm:"libsystemd0~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libsystemd0-32bit", rpm:"libsystemd0-32bit~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev-devel", rpm:"libudev-devel~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev1", rpm:"libudev1~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev1-32bit", rpm:"libudev1-32bit~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd", rpm:"systemd~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-32bit", rpm:"systemd-32bit~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-bash-completion", rpm:"systemd-bash-completion~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-devel", rpm:"systemd-devel~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-sysvinit", rpm:"systemd-sysvinit~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"udev", rpm:"udev~228~150.98.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "SLES12.0SP4") {

  if(!isnull(res = isrpmvuln(pkg:"libsystemd0", rpm:"libsystemd0~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libsystemd0-32bit", rpm:"libsystemd0-32bit~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev-devel", rpm:"libudev-devel~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev1", rpm:"libudev1~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libudev1-32bit", rpm:"libudev1-32bit~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd", rpm:"systemd~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-32bit", rpm:"systemd-32bit~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-bash-completion", rpm:"systemd-bash-completion~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-devel", rpm:"systemd-devel~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"systemd-sysvinit", rpm:"systemd-sysvinit~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"udev", rpm:"udev~228~150.98.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);