Ubuntu: Security Advisory (USN-50-1)

# 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("1.3.6.1.4.1.25623.1.1.12.2004.50.1");
  script_cve_id("CVE-2004-1125", "CVE-2004-1267", "CVE-2004-1268", "CVE-2004-1269", "CVE-2004-1270");
  script_tag(name:"creation_date", value:"2022-08-26 07:43:23 +0000 (Fri, 26 Aug 2022)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  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_name("Ubuntu: Security Advisory (USN-50-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU4\.10");

  script_xref(name:"Advisory-ID", value:"USN-50-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-50-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'cupsys' package(s) announced via the USN-50-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"CAN-2004-1125:

 The recent USN-48-1 fixed a buffer overflow in xpdf. Since CUPS
 contains xpdf code to convert incoming PDF files to the PostScript
 format, this vulnerability applies to cups as well.

 In this case it could even lead to privilege escalation: if an
 attacker submitted a malicious PDF file for printing, he could be
 able to execute arbitrary commands with the privileges of the
 CUPS server.

 Please note that the Ubuntu version of CUPS runs as a minimally
 privileged user 'cupsys' by default, so there is no possibility of
 root privilege escalation. The privileges of the 'cupsys' user are
 confined to modifying printer configurations, altering print jobs,
 and controlling printers.

CAN-2004-1267:

 Ariel Berkman discovered a buffer overflow in the ParseCommand()
 function of the HPGL input driver. If an attacker printed a
 malicious HPGL file, they could exploit this to execute arbitrary
 commands with the privileges of the CUPS server.

CAN-2004-1268, CAN-2004-1269, CAN-2004-1270:

 Bartlomiej Sieka discovered three flaws in lppasswd. These allowed
 users to corrupt the new password file by filling up the disk,
 sending certain signals, or closing the standard output and/or error
 streams.");

  script_tag(name:"affected", value:"'cupsys' package(s) on Ubuntu 4.10.");

  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-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "UBUNTU4.10") {

  if(!isnull(res = isdpkgvuln(pkg:"cupsys", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"cupsys-bsd", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"cupsys-client", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcupsimage2", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcupsimage2-dev", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcupsys2-dev", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcupsys2-gnutls10", ver:"1.1.20final+cvs20040330-4ubuntu16.3", rls:"UBUNTU4.10"))) {
    report += res;
  }

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

exit(0);