Stefan Kaltenbrunner discovered that ldns, a library and set of utilities to facilitate DNS programming, did not correctly implement a buffer boundary check in its RR DNS record parser. This weakness could enable overflow of a heap buffer if a maliciously-crafted record is parsed, potentially allowing the execution of arbitrary code. The scope of compromise will vary with the context in which ldns is used, and could present either a local or remote attack vector.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-1795. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(38723);
script_version("1.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2009-1086");
script_xref(name:"DSA", value:"1795");
script_name(english:"Debian DSA-1795-1 : ldns - buffer overflow");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Stefan Kaltenbrunner discovered that ldns, a library and set of
utilities to facilitate DNS programming, did not correctly implement a
buffer boundary check in its RR DNS record parser. This weakness could
enable overflow of a heap buffer if a maliciously-crafted record is
parsed, potentially allowing the execution of arbitrary code. The
scope of compromise will vary with the context in which ldns is used,
and could present either a local or remote attack vector."
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2009/dsa-1795"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the ldns packages.
The old stable distribution (etch) is not affected by this issue.
For the stable distribution (lenny), this problem has been fixed in
version 1.4.0-1+lenny1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P");
script_cwe_id(399);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ldns");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
script_set_attribute(attribute:"patch_publication_date", value:"2009/05/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2009/05/11");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2009-2021 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:"5.0", prefix:"ldnsutils", reference:"1.4.0-1+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"libldns-dev", reference:"1.4.0-1+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"libldns1", reference:"1.4.0-1+lenny1")) 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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | ldns | p-cpe:/a:debian:debian_linux:ldns |
debian | debian_linux | 5.0 | cpe:/o:debian:debian_linux:5.0 |