SUSE: Security Advisory (SUSE-SU-2022:0733-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2022.0733.1");
  script_cve_id("CVE-2018-1100", "CVE-2019-20044", "CVE-2021-45444");
  script_tag(name:"creation_date", value:"2022-03-05 04:11:51 +0000 (Sat, 05 Mar 2022)");
  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:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/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:"2022-02-23 20:16:47 +0000 (Wed, 23 Feb 2022)");

  script_name("SUSE: Security Advisory (SUSE-SU-2022:0733-1)");
  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=(SLES12\.0SP2|SLES12\.0SP3|SLES12\.0SP4|SLES12\.0SP5)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2022:0733-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2022/suse-su-20220733-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1089030");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1163882");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1196435");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2022-March/010368.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'zsh' package(s) announced via the SUSE-SU-2022:0733-1 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 zsh fixes the following issues:

- CVE-2021-45444: Fixed a vulnerability where arbitrary shell commands could be
 executed related to prompt expansion (bsc#1196435).
- CVE-2019-20044: Fixed a vulnerability where shell privileges would not be
 properly dropped when unsetting the PRIVILEGED option (bsc#1163882).
- CVE-2018-1100: Fixed a potential code execution via a stack-based buffer
 overflow in utils.c:checkmailpath() (bsc#1089030).");

  script_tag(name:"affected", value:"'zsh' 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 12-SP5, SUSE Linux Enterprise Server for SAP Applications 12-SP3, SUSE Linux Enterprise Server for SAP Applications 12-SP4, SUSE Linux Enterprise Server for SAP Applications 12-SP5.");

  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:"zsh", rpm:"zsh~5.0.5~6.19.1", 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:"zsh", rpm:"zsh~5.0.5~6.19.1", 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:"zsh", rpm:"zsh~5.0.5~6.19.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

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

if(release == "SLES12.0SP5") {

  if(!isnull(res = isrpmvuln(pkg:"zsh", rpm:"zsh~5.0.5~6.19.1", rls:"SLES12.0SP5"))) {
    report += res;
  }

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

exit(0);