Debian DLA-2456-1 : python3.5 security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2456-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(143104);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/08");

  script_cve_id("CVE-2019-20907", "CVE-2020-26116");

  script_name(english:"Debian DLA-2456-1 : python3.5 security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Multiple security issues were discovered in Python.

CVE-2019-20907

In Lib/tarfile.py, an attacker is able to craft a TAR archive leading
to an infinite loop when opened by tarfile.open, because _proc_pax
lacks header validation

CVE-2020-26116

http.client allows CRLF injection if the attacker controls the HTTP
request method

For Debian 9 stretch, these problems have been fixed in version
3.5.3-1+deb9u3.

We recommend that you upgrade your python3.5 packages.

For the detailed security status of python3.5 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/python3.5

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/2020/11/msg00032.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/python3.5");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/python3.5");
  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:N");
  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:N/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-26116");

  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:"2020/07/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:idle-python3.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.5-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.5-minimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.5-stdlib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.5-testsuite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5-examples");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5-minimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.5-venv");
  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) 2020-2024 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:"idle-python3.5", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libpython3.5", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libpython3.5-dbg", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libpython3.5-dev", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libpython3.5-minimal", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libpython3.5-stdlib", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libpython3.5-testsuite", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5-dbg", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5-dev", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5-doc", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5-examples", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5-minimal", reference:"3.5.3-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"python3.5-venv", reference:"3.5.3-1+deb9u3")) 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");