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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DLA-2652.NASL
HistoryMay 07, 2021 - 12:00 a.m.

Debian DLA-2652-1 : unbound1.9 security update

2021-05-0700:00:00
This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
14

9 High

AI Score

Confidence

Low

Several security vulnerabilities have been discovered in Unbound, a validating, recursive, caching DNS resolver, by security researchers of X41 D-SEC located in Aachen, Germany. Integer overflows, assertion failures, an out-of-bound write and an infinite loop vulnerability may lead to a denial of service or have a negative impact on data confidentiality.

For Debian 9 stretch, these problems have been fixed in version 1.9.0-2+deb10u2~deb9u2.

We recommend that you upgrade your unbound1.9 packages.

For the detailed security status of unbound1.9 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/unbound1.9

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2652-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include("compat.inc");

if (description)
{
  script_id(149342);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/12");

  script_cve_id("CVE-2019-25031", "CVE-2019-25032", "CVE-2019-25033", "CVE-2019-25034", "CVE-2019-25035", "CVE-2019-25036", "CVE-2019-25037", "CVE-2019-25038", "CVE-2019-25039", "CVE-2019-25040", "CVE-2019-25041", "CVE-2019-25042");

  script_name(english:"Debian DLA-2652-1 : unbound1.9 security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Several security vulnerabilities have been discovered in Unbound, a
validating, recursive, caching DNS resolver, by security researchers
of X41 D-SEC located in Aachen, Germany. Integer overflows, assertion
failures, an out-of-bound write and an infinite loop vulnerability may
lead to a denial of service or have a negative impact on data
confidentiality.

For Debian 9 stretch, these problems have been fixed in version
1.9.0-2+deb10u2~deb9u2.

We recommend that you upgrade your unbound1.9 packages.

For the detailed security status of unbound1.9 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/unbound1.9

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/unbound1.9"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/unbound1.9"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-25042");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libunbound8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:unbound");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:unbound-anchor");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:unbound-host");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/04/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/05/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/05/07");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"9.0", prefix:"libunbound8", reference:"1.9.0-2+deb10u2~deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"unbound", reference:"1.9.0-2+deb10u2~deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"unbound-anchor", reference:"1.9.0-2+deb10u2~deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"unbound-host", reference:"1.9.0-2+deb10u2~deb9u2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

References