Debian: Security Advisory (DSA-151)

# SPDX-FileCopyrightText: 2008 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("1.3.6.1.4.1.25623.1.0.53411");
  script_cve_id("CVE-2002-0871");
  script_tag(name:"creation_date", value:"2008-01-17 21:24:46 +0000 (Thu, 17 Jan 2008)");
  script_version("2024-02-01T14:37:10+0000");
  script_tag(name:"last_modification", value:"2024-02-01 14:37:10 +0000 (Thu, 01 Feb 2024)");
  script_tag(name:"cvss_base", value:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:N/A:P");

  script_name("Debian: Security Advisory (DSA-151)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2008 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB3\.0");

  script_xref(name:"Advisory-ID", value:"DSA-151");
  script_xref(name:"URL", value:"https://www.debian.org/security/2002/DSA-151");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-151");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'xinetd' package(s) announced via the DSA-151 advisory.");

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

  script_tag(name:"insight", value:"Solar Designer found a vulnerability in xinetd, a replacement for the BSD derived inetd. File descriptors for the signal pipe introduced in version 2.3.4 are leaked into services started from xinetd. The descriptors could be used to talk to xinetd resulting in crashing it entirely. This is usually called a denial of service.

This problem has been fixed by the package maintainer in version 2.3.4-1.2 for the current stable distribution (woody) and in version 2.3.7-1 for the unstable distribution (sid). The old stable distribution (potato) is not affected, since it doesn't contain the signal pipe.

We recommend that you upgrade your xinetd packages.");

  script_tag(name:"affected", value:"'xinetd' package(s) on Debian 3.0.");

  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 == "DEB3.0") {

  if(!isnull(res = isdpkgvuln(pkg:"xinetd", ver:"1:2.3.4-1.2", rls:"DEB3.0"))) {
    report += res;
  }

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

exit(0);