SUSE: Security Advisory (SUSE-SU-2021:2682-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2021.2682.1");
  script_cve_id("CVE-2021-20266", "CVE-2021-20271", "CVE-2021-3421");
  script_tag(name:"creation_date", value:"2021-08-13 06:36:00 +0000 (Fri, 13 Aug 2021)");
  script_version("2024-02-02T14:37:50+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:50 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-03-31 19:29:15 +0000 (Wed, 31 Mar 2021)");

  script_name("SUSE: Security Advisory (SUSE-SU-2021:2682-1)");
  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=(SLES15\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2021:2682-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2021/suse-su-20212682-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'rpm' package(s) announced via the SUSE-SU-2021:2682-1 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 rpm fixes the following issues:

Changed default package verification level to 'none' to be compatible to
 rpm-4.14.1

Made illegal obsoletes a warning

Fixed a potential access of freed mem in ndb's glue code (bsc#1179416)

Added support for enforcing signature policy and payload verification
 step to transactions (jsc#SLE-17817)

Added :humansi and :hmaniec query formatters for human readable output

Added query selectors for whatobsoletes and whatconflicts

Added support for sorting caret higher than base version

rpm does no longer require the signature header to be in a contiguous
 region when signing (bsc#1181805)

Security fixes:

CVE-2021-3421: A flaw was found in the RPM package in the read
 functionality. This flaw allows an attacker who can convince a victim to
 install a seemingly verifiable package or compromise an RPM repository,
 to cause RPM database corruption. The highest threat from this
 vulnerability is to data integrity (bsc#1183543)

CVE-2021-20271: A flaw was found in RPM's signature check functionality
 when reading a package file. This flaw allows an attacker who can
 convince a victim to install a seemingly verifiable package, whose
 signature header was modified, to cause RPM database corruption and
 execute code. The highest threat from this vulnerability is to data
 integrity, confidentiality, and system availability (bsc#1183545)

CVE-2021-20266: A flaw was found in RPM's hdrblobInit() in lib/header.c.
 This flaw allows an attacker who can modify the rpmdb to cause an
 out-of-bounds read. The highest threat from this vulnerability is to
 system availability.");

  script_tag(name:"affected", value:"'rpm' package(s) on SUSE Linux Enterprise Module for Basesystem 15-SP3, SUSE Linux Enterprise Module for Development Tools 15-SP3, SUSE Linux Enterprise Module for Public Cloud 15-SP3, SUSE Linux Enterprise Module for Python2 15-SP3, SUSE Linux Enterprise Module for SUSE Manager Proxy 4.2, SUSE Linux Enterprise Module for SUSE Manager Server 4.2.");

  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:"python-rpm-debugsource", rpm:"python-rpm-debugsource~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python3-rpm", rpm:"python3-rpm~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python3-rpm-debuginfo", rpm:"python3-rpm-debuginfo~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-32bit", rpm:"rpm-32bit~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-32bit-debuginfo", rpm:"rpm-32bit-debuginfo~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm", rpm:"rpm~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-debuginfo", rpm:"rpm-debuginfo~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-debugsource", rpm:"rpm-debugsource~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-devel", rpm:"rpm-devel~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-build", rpm:"rpm-build~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-build-debuginfo", rpm:"rpm-build-debuginfo~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-ndb", rpm:"rpm-ndb~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-ndb-debuginfo", rpm:"rpm-ndb-debuginfo~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"rpm-ndb-debugsource", rpm:"rpm-ndb-debugsource~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python2-rpm", rpm:"python2-rpm~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python2-rpm-debuginfo", rpm:"python2-rpm-debuginfo~4.14.3~37.2", rls:"SLES15.0SP3"))) {
    report += res;
  }

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

exit(0);