Debian: Security Advisory (DSA-1963-1)

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.66597");
  script_cve_id("CVE-2009-3602");
  script_tag(name:"creation_date", value:"2009-12-30 20:58:43 +0000 (Wed, 30 Dec 2009)");
  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:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_name("Debian: Security Advisory (DSA-1963-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 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=DEB5");

  script_xref(name:"Advisory-ID", value:"DSA-1963-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2009/DSA-1963-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-1963");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'unbound' package(s) announced via the DSA-1963-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that Unbound, a DNS resolver, does not properly check cryptographic signatures on NSEC3 records. As a result, zones signed with the NSEC3 variant of DNSSEC lose their cryptographic protection. (An attacker would still have to carry out an ordinary cache poisoning attack to add bad data to the cache.)

The old stable distribution (etch) does not contain an unbound package.

For the stable distribution (lenny), this problem has been fixed in version 1.0.2-1+lenny1.

For the unstable distribution (sid) and the testing distribution (squeeze), this problem has been fixed in version 1.3.4-1.

We recommend that you upgrade your unbound package.");

  script_tag(name:"affected", value:"'unbound' package(s) on Debian 5.");

  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 == "DEB5") {

  if(!isnull(res = isdpkgvuln(pkg:"libunbound-dev", ver:"1.0.2-1+lenny1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libunbound0", ver:"1.0.2-1+lenny1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"unbound", ver:"1.0.2-1+lenny1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"unbound-host", ver:"1.0.2-1+lenny1", rls:"DEB5"))) {
    report += res;
  }

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

exit(0);