SUSE: Security Advisory (SUSE-SU-2018:2975-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2018.2975.1");
  script_cve_id("CVE-2018-15908", "CVE-2018-15909", "CVE-2018-15910", "CVE-2018-15911", "CVE-2018-16509", "CVE-2018-16510", "CVE-2018-16511", "CVE-2018-16513", "CVE-2018-16539", "CVE-2018-16540", "CVE-2018-16541", "CVE-2018-16542", "CVE-2018-16543", "CVE-2018-16585", "CVE-2018-16802", "CVE-2018-17183");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 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:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/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:"2018-11-19 14:24:03 +0000 (Mon, 19 Nov 2018)");

  script_name("SUSE: Security Advisory (SUSE-SU-2018:2975-1)");
  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\.0|SLES12\.0SP1|SLES12\.0SP2|SLES12\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2018:2975-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2018/suse-su-20182975-1.html");
  script_xref(name:"URL", value:"http://www.ghostscript.com/doc/9.25/News.htm");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1106171");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1106172");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1106173");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1106195");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107410");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107411");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107412");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107413");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107420");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107421");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107422");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107423");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107426");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1107581");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1108027");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1109105");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2018-October/004632.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ghostscript' package(s) announced via the SUSE-SU-2018:2975-1 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 ghostscript to version 9.25 fixes the following issues:

These security issues were fixed:

- CVE-2018-17183: Remote attackers were be able to supply crafted PostScript to
 potentially overwrite or replace error handlers to inject code (bsc#1109105)
- CVE-2018-15909: Prevent type confusion using the .shfill operator that could
 have been used by attackers able to supply crafted PostScript files to crash
 the interpreter or potentially execute code (bsc#1106172).
- CVE-2018-15908: Prevent attackers that are able to supply malicious
 PostScript files to bypass .tempfile restrictions and write files
 (bsc#1106171).
- CVE-2018-15910: Prevent a type confusion in the LockDistillerParams parameter
 that could have been used to crash the interpreter or execute code
 (bsc#1106173).
- CVE-2018-15911: Prevent use uninitialized memory access in the aesdecode
 operator that could have been used to crash the interpreter or potentially
 execute code (bsc#1106195).
- CVE-2018-16513: Prevent a type confusion in the setcolor function that could
 have been used to crash the interpreter or possibly have unspecified other
 impact (bsc#1107412).
- CVE-2018-16509: Incorrect 'restoration of privilege' checking during handling
 of /invalidaccess exceptions could be have been used by attackers able to
 supply crafted PostScript to execute code using the 'pipe' instruction
 (bsc#1107410).
- CVE-2018-16510: Incorrect exec stack handling in the 'CS' and 'SC' PDF
 primitives could have been used by remote attackers able to supply crafted PDFs
 to crash the interpreter or possibly have unspecified other impact
 (bsc#1107411).
- CVE-2018-16542: Prevent attackers able to supply crafted PostScript files
 from using insufficient interpreter stack-size checking during error handling
 to crash the interpreter (bsc#1107413).
- CVE-2018-16541: Prevent attackers able to supply crafted PostScript files
 from using incorrect free logic in pagedevice replacement to crash the
 interpreter (bsc#1107421).
- CVE-2018-16540: Prevent use-after-free in copydevice handling that could have
 been used to crash the interpreter or possibly have unspecified other impact
 (bsc#1107420).
- CVE-2018-16539: Prevent attackers able to supply crafted PostScript files
 from using incorrect access checking in temp file handling to disclose contents
 of files on the system otherwise not readable (bsc#1107422).
- CVE-2018-16543: gssetresolution and gsgetresolution allowed attackers to have
 an unspecified impact (bsc#1107423).
- CVE-2018-16511: A type confusion in 'ztype' could have been used by remote
 attackers able to supply crafted PostScript to crash the interpreter or
 possibly have unspecified other impact (bsc#1107426).
- CVE-2018-16585: The .setdistillerkeys PostScript command was accepted even
 though it is not intended for use during document processing (e.g., after the
 startup phase). This lead to memory ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'ghostscript' package(s) on SUSE Linux Enterprise Desktop 12-SP3, SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 12-SP1, SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server 12-SP3, SUSE Linux Enterprise Server for SAP Applications 12-SP2, SUSE Linux Enterprise Server for SAP Applications 12-SP3.");

  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 == "SLES12.0") {

  if(!isnull(res = isrpmvuln(pkg:"ghostscript", rpm:"ghostscript~9.25~23.13.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ghostscript-x11", rpm:"ghostscript-x11~9.25~23.13.1", rls:"SLES12.0"))) {
    report += res;
  }

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

if(release == "SLES12.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"ghostscript", rpm:"ghostscript~9.25~23.13.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ghostscript-x11", rpm:"ghostscript-x11~9.25~23.13.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

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

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

  if(!isnull(res = isrpmvuln(pkg:"ghostscript", rpm:"ghostscript~9.25~23.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ghostscript-x11", rpm:"ghostscript-x11~9.25~23.13.1", 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:"ghostscript", rpm:"ghostscript~9.25~23.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ghostscript-x11", rpm:"ghostscript-x11~9.25~23.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

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

exit(0);