Debian DLA-2296-1 : luajit security update

2020-07-30T00:00:00
ID DEBIAN_DLA-2296.NASL
Type nessus
Reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-07-30T00:00:00

Description

An issue has been found in luajit, a just in time compiler for Lua.

An out-of-bounds read could happen because __gc handler frame traversal is mishandled.

For Debian 9 stretch, this problem has been fixed in version 2.0.4+dfsg-1+deb9u1.

We recommend that you upgrade your luajit packages.

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

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2296-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(139096);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/24");

  script_cve_id("CVE-2020-15890");

  script_name(english:"Debian DLA-2296-1 : luajit 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:
"An issue has been found in luajit, a just in time compiler for Lua.

An out-of-bounds read could happen because __gc handler frame
traversal is mishandled.

For Debian 9 stretch, this problem has been fixed in version
2.0.4+dfsg-1+deb9u1.

We recommend that you upgrade your luajit packages.

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

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/2020/07/msg00026.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/luajit"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/luajit"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/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-2020-15890");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libluajit-5.1-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libluajit-5.1-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libluajit-5.1-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:luajit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/30");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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:"libluajit-5.1-2", reference:"2.0.4+dfsg-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libluajit-5.1-common", reference:"2.0.4+dfsg-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libluajit-5.1-dev", reference:"2.0.4+dfsg-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"luajit", reference:"2.0.4+dfsg-1+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");