SUSE: Security Advisory (SUSE-SU-2024:1991-1)

# SPDX-FileCopyrightText: 2024 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("1.3.6.1.4.1.25623.1.1.4.2024.1991.1");
  script_cve_id("CVE-2022-30698", "CVE-2022-30699", "CVE-2022-3204", "CVE-2023-50387", "CVE-2023-50868");
  script_tag(name:"creation_date", value:"2024-06-12 04:25:31 +0000 (Wed, 12 Jun 2024)");
  script_version("2024-06-12T05:05:44+0000");
  script_tag(name:"last_modification", value:"2024-06-12 05:05:44 +0000 (Wed, 12 Jun 2024)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-02-20 16:55:30 +0000 (Tue, 20 Feb 2024)");

  script_name("SUSE: Security Advisory (SUSE-SU-2024:1991-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2024 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\.0SP2|SLES15\.0SP3|SLES15\.0SP4)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2024:1991-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2024/suse-su-20241991-1/");
  script_xref(name:"URL", value:"https://www.nlnetlabs.nl/projects/unbound/download/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'unbound' package(s) announced via the SUSE-SU-2024:1991-1 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 unbound fixes the following issues:
unbound was updated to 1.20.0:

A lot of bugfixes and added features.
 For a complete list take a look at the changelog located at:
 /usr/share/doc/packages/unbound/Changelog or
 [link moved to references]

Some Noteworthy Changes:

Removed DLV. The DLV has been decommisioned since unbound
 1.5.4 and has been advised to stop using it since. The use of
 dlv options displays a warning.
Remove EDNS lame procedure, do not re-query without EDNS after
 timeout.
Add DNS over HTTPS libunbound has been upgraded to major version 8

Security Fixes:
* CVE-2023-50387: DNSSEC verification complexity can be
 exploited to exhaust CPU resources and stall DNS resolvers. [bsc#1219823]
* CVE-2023-50868: NSEC3 closest encloser proof can exhaust CPU.
 [bsc#1219826]
* CVE-2022-30698: Novel 'ghost domain names' attack by
 introducing subdomain delegations. [bsc#1202033]
* CVE-2022-30699: Novel 'ghost domain names' attack by
 updating almost expired delegation information. [bsc#1202031]
* CVE-2022-3204: NRDelegation attack leads to uncontrolled
 resource consumption (Non-Responsive Delegation Attack). [bsc#1203643]
Packaging Changes:

Use prefixes instead of sudo in unbound.service Remove no longer necessary BuildRequires: libfstrm-devel and
 libprotobuf-c-devel");

  script_tag(name:"affected", value:"'unbound' package(s) on SUSE Enterprise Storage 7.1, SUSE Linux Enterprise Desktop 15-SP4, SUSE Linux Enterprise High Performance Computing 15-SP2, SUSE Linux Enterprise High Performance Computing 15-SP3, SUSE Linux Enterprise High Performance Computing 15-SP4, SUSE Linux Enterprise Micro 5.5, SUSE Linux Enterprise Server 15-SP2, SUSE Linux Enterprise Server 15-SP3, SUSE Linux Enterprise Server 15-SP4, SUSE Linux Enterprise Server for SAP Applications 15-SP2, SUSE Linux Enterprise Server for SAP Applications 15-SP3, SUSE Linux Enterprise Server for SAP Applications 15-SP4, SUSE Manager Proxy 4.3, SUSE Manager Retail Branch Server 4.3, SUSE Manager Server 4.3, SUSE Package Hub 15.");

  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 == "SLES15.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"libunbound8", rpm:"libunbound8~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libunbound8-debuginfo", rpm:"libunbound8-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-anchor", rpm:"unbound-anchor~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-anchor-debuginfo", rpm:"unbound-anchor-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-debuginfo", rpm:"unbound-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-debugsource", rpm:"unbound-debugsource~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-devel", rpm:"unbound-devel~1.20.0~150100.10.13.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

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

if(release == "SLES15.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"libunbound8", rpm:"libunbound8~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libunbound8-debuginfo", rpm:"libunbound8-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-anchor", rpm:"unbound-anchor~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-anchor-debuginfo", rpm:"unbound-anchor-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-debuginfo", rpm:"unbound-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-debugsource", rpm:"unbound-debugsource~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-devel", rpm:"unbound-devel~1.20.0~150100.10.13.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

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

if(release == "SLES15.0SP4") {

  if(!isnull(res = isrpmvuln(pkg:"libunbound8", rpm:"libunbound8~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libunbound8-debuginfo", rpm:"libunbound8-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-anchor", rpm:"unbound-anchor~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-anchor-debuginfo", rpm:"unbound-anchor-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-debuginfo", rpm:"unbound-debuginfo~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-debugsource", rpm:"unbound-debugsource~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"unbound-devel", rpm:"unbound-devel~1.20.0~150100.10.13.1", rls:"SLES15.0SP4"))) {
    report += res;
  }

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

exit(0);