10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.014 Low
EPSS
Percentile
86.2%
Hanno Boeck discovered a stack-based buffer overflow in the asn1_der_decoding function in Libtasn1, a library to manage ASN.1 structures. A remote attacker could take advantage of this flaw to cause an application using the Libtasn1 library to crash, or potentially to execute arbitrary code.
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-195-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82718);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-2806");
script_bugtraq_id(73436);
script_name(english:"Debian DLA-195-1 : libtasn1-3 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:
"Hanno Boeck discovered a stack-based buffer overflow in the
asn1_der_decoding function in Libtasn1, a library to manage ASN.1
structures. A remote attacker could take advantage of this flaw to
cause an application using the Libtasn1 library to crash, or
potentially to execute arbitrary code.
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/2015/04/msg00009.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze-lts/libtasn1-3"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
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:libtasn1-3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtasn1-3-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtasn1-3-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libtasn1-3-dev");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2015/04/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/13");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
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:"6.0", prefix:"libtasn1-3", reference:"2.7-1+squeeze+3")) flag++;
if (deb_check(release:"6.0", prefix:"libtasn1-3-bin", reference:"2.7-1+squeeze+3")) flag++;
if (deb_check(release:"6.0", prefix:"libtasn1-3-dbg", reference:"2.7-1+squeeze+3")) flag++;
if (deb_check(release:"6.0", prefix:"libtasn1-3-dev", reference:"2.7-1+squeeze+3")) 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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libtasn1-3 | p-cpe:/a:debian:debian_linux:libtasn1-3 |
debian | debian_linux | libtasn1-3-bin | p-cpe:/a:debian:debian_linux:libtasn1-3-bin |
debian | debian_linux | libtasn1-3-dbg | p-cpe:/a:debian:debian_linux:libtasn1-3-dbg |
debian | debian_linux | libtasn1-3-dev | p-cpe:/a:debian:debian_linux:libtasn1-3-dev |
debian | debian_linux | 6.0 | cpe:/o:debian:debian_linux:6.0 |