Debian DLA-2536-1 : libsdl2 security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2536-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(145772);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/25");

  script_cve_id(
    "CVE-2019-13616",
    "CVE-2019-7575",
    "CVE-2019-7577",
    "CVE-2019-7578",
    "CVE-2019-7635",
    "CVE-2019-7636",
    "CVE-2019-7638",
    "CVE-2020-14409",
    "CVE-2020-14410"
  );

  script_name(english:"Debian DLA-2536-1 : libsdl2 security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Several issues have been found in libsdl2, a library for portable low
level access to a video framebuffer, audio output, mouse, and
keyboard. All issues are related to either buffer overflow, integer
overflow or heap-based buffer over-read, resulting in a DoS or remote
code execution by using crafted files of different formats.

For Debian 9 stretch, these problems have been fixed in version
2.0.5+dfsg1-2+deb9u1.

We recommend that you upgrade your libsdl2 packages.

For the detailed security status of libsdl2 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/libsdl2

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/2021/01/msg00024.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/libsdl2");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/libsdl2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-14409");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-7638");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsdl2-2.0-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsdl2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsdl2-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"libsdl2-2.0-0", reference:"2.0.5+dfsg1-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libsdl2-dev", reference:"2.0.5+dfsg1-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libsdl2-doc", reference:"2.0.5+dfsg1-2+deb9u1")) flag++;

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