SUSE: Security Advisory (SUSE-SU-2022:0845-1)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.4.2022.0845.1");
  script_cve_id("CVE-2020-14367");
  script_tag(name:"creation_date", value:"2022-03-16 04:11:20 +0000 (Wed, 16 Mar 2022)");
  script_version("2024-02-02T14:37:51+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:51 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"3.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-02 14:05:14 +0000 (Wed, 02 Sep 2020)");

  script_name("SUSE: Security Advisory (SUSE-SU-2022:0845-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 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=(SLES15\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2022:0845-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2022/suse-su-20220845-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'chrony' package(s) announced via the SUSE-SU-2022:0845-1 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 chrony fixes the following issues:

Chrony was updated to 4.1, bringing features and bugfixes.

Update to 4.1

 * Add support for NTS servers specified by IP address (matching Subject
 Alternative Name in server certificate)
 * Add source-specific configuration of trusted certificates
 * Allow multiple files and directories with trusted certificates
 * Allow multiple pairs of server keys and certificates
 * Add copy option to server/pool directive
 * Increase PPS lock limit to 40% of pulse interval
 * Perform source selection immediately after loading dump files
 * Reload dump files for addresses negotiated by NTS-KE server
 * Update seccomp filter and add less restrictive level
 * Restart ongoing name resolution on online command
 * Fix dump files to not include uncorrected offset
 * Fix initstepslew to accept time from own NTP clients
 * Reset NTP address and port when no longer negotiated by NTS-KE server

Ensure the correct pool packages are installed for openSUSE and SLE
 (bsc#1180689).

Fix pool package dependencies, so that SLE prefers chrony-pool-suse
 over chrony-pool-empty. (bsc#1194229)

Enable syscallfilter unconditionally [bsc#1181826].

Update to 4.0

 - Enhancements

 - Add support for Network Time Security (NTS) authentication
 - Add support for AES-CMAC keys (AES128, AES256) with Nettle
 - Add authselectmode directive to control selection of unauthenticated
 sources
 - Add binddevice, bindacqdevice, bindcmddevice directives
 - Add confdir directive to better support fragmented configuration
 - Add sourcedir directive and 'reload sources' command to support
 dynamic NTP sources specified in files
 - Add clockprecision directive
 - Add dscp directive to set Differentiated Services Code Point (DSCP)
 - Add -L option to limit log messages by severity
 - Add -p option to print whole configuration with included files
 - Add -U option to allow start under non-root user
 - Allow maxsamples to be set to 1 for faster update with -q/-Q
 option
 - Avoid replacing NTP sources with sources that have unreachable
 address
 - Improve pools to repeat name resolution to get 'maxsources' sources
 - Improve source selection with trusted sources
 - Improve NTP loop test to prevent synchronisation to itself
 - Repeat iburst when NTP source is switched from offline state to
 online
 - Update clock synchronisation status and leap status more frequently
 - Update seccomp filter
 - Add 'add pool' command
 - Add 'reset sources' command to drop all measurements
 - Add authdata command to print details about NTP authentication
 - Add selectdata command to print details about source selection
 - Add -N option and sourcename command to print original names
 of sources
 - Add -a option to some commands to print also unresolved sources
 - Add -k, -p, -r options to clients command to select, limit, reset
 data

 - Bug fixes

 - Don't set interface for NTP responses to ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'chrony' package(s) on SUSE Linux Enterprise Installer 15-SP3, SUSE Linux Enterprise Micro 5.0, SUSE Linux Enterprise Micro 5.1, SUSE Linux Enterprise Module for Basesystem 15-SP3, SUSE Linux Enterprise Realtime Extension 15-SP2.");

  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 == "SLES15.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"augeas", rpm:"augeas~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"augeas-debuginfo", rpm:"augeas-debuginfo~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"augeas-debugsource", rpm:"augeas-debugsource~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"augeas-devel", rpm:"augeas-devel~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"augeas-lenses", rpm:"augeas-lenses~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"chrony", rpm:"chrony~4.1~150300.16.3.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"chrony-debuginfo", rpm:"chrony-debuginfo~4.1~150300.16.3.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"chrony-debugsource", rpm:"chrony-debugsource~4.1~150300.16.3.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"chrony-pool-empty", rpm:"chrony-pool-empty~4.1~150300.16.3.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"chrony-pool-suse", rpm:"chrony-pool-suse~4.1~150300.16.3.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libaugeas0", rpm:"libaugeas0~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libaugeas0-debuginfo", rpm:"libaugeas0-debuginfo~1.10.1~3.9.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

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

exit(0);