Slackware: Security Advisory (SSA:2023-003-02)

# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.1.13.2023.003.02");
  script_cve_id("CVE-2022-4170");
  script_tag(name:"creation_date", value:"2023-01-04 04:17:58 +0000 (Wed, 04 Jan 2023)");
  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:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-12-12 17:42:07 +0000 (Mon, 12 Dec 2022)");

  script_name("Slackware: Security Advisory (SSA:2023-003-02)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Slackware Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/slackware_linux", "ssh/login/slackpack", re:"ssh/login/release=SLK(15\.0|current)");

  script_xref(name:"Advisory-ID", value:"SSA:2023-003-02");
  script_xref(name:"URL", value:"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2023&m=slackware-security.361488");
  script_xref(name:"URL", value:"https://www.cve.org/CVERecord?id=CVE-2022-4170");
  script_xref(name:"URL", value:"https://www.openwall.com/lists/oss-security/2022/12/05/1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'rxvt-unicode' package(s) announced via the SSA:2023-003-02 advisory.");

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

  script_tag(name:"insight", value:"New rxvt-unicode packages are available for Slackware 15.0 and -current to
fix a security issue.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/rxvt-unicode-9.26-i586-3_slack15.0.txz: Rebuilt.
 When the 'background' extension was loaded, an attacker able to control the
 data written to the terminal would be able to execute arbitrary code as the
 terminal's user. Thanks to David Leadbeater and Ben Collver.
 For more information, see:
 [link moved to references]
 [link moved to references]
 (* Security fix *)
+--------------------------+");

  script_tag(name:"affected", value:"'rxvt-unicode' package(s) on Slackware 15.0, Slackware current.");

  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-slack.inc");

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

res = "";
report = "";

if(release == "SLK15.0") {

  if(!isnull(res = isslkpkgvuln(pkg:"rxvt-unicode", ver:"9.26-i586-3_slack15.0", rls:"SLK15.0"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"rxvt-unicode", ver:"9.26-x86_64-3_slack15.0", rls:"SLK15.0"))) {
    report += res;
  }

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

if(release == "SLKcurrent") {

  if(!isnull(res = isslkpkgvuln(pkg:"rxvt-unicode", ver:"9.26-i586-4", rls:"SLKcurrent"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"rxvt-unicode", ver:"9.26-x86_64-4", rls:"SLKcurrent"))) {
    report += res;
  }

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

exit(0);