5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.4 High
AI Score
Confidence
High
0.013 Low
EPSS
Percentile
85.9%
Vulnerabilities have been discovered in nss, the Mozilla Network Security Service library.
CVE-2019-11719: Out-of-bounds read when importing curve25519 private key
When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure.
CVE-2019-11729: Empty or malformed p256-ECDH public keys may trigger a segmentation fault
Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used.
For Debian 8 ‘Jessie’, these problems have been fixed in version 2:3.26-1+debu8u5.
We recommend that you upgrade your nss packages.
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-1857-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(126834);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/09");
script_cve_id("CVE-2019-11719", "CVE-2019-11729");
script_name(english:"Debian DLA-1857-1 : nss security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"Vulnerabilities have been discovered in nss, the Mozilla Network
Security Service library.
CVE-2019-11719: Out-of-bounds read when importing curve25519 private
key
When importing a curve25519 private key in PKCS#8format with leading
0x00 bytes, it is possible to trigger an out-of-bounds read in the
Network Security Services (NSS) library. This could lead to
information disclosure.
CVE-2019-11729: Empty or malformed p256-ECDH public keys may trigger a
segmentation fault
Empty or malformed p256-ECDH public keys may trigger a segmentation
fault due values being improperly sanitized before being copied into
memory and used.
For Debian 8 'Jessie', these problems have been fixed in version
2:3.26-1+debu8u5.
We recommend that you upgrade your nss packages.
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/2019/07/msg00017.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/nss");
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:N/A:N");
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:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11719");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/23");
script_set_attribute(attribute:"patch_publication_date", value:"2019/07/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/22");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnss3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnss3-1d");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnss3-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnss3-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnss3-tools");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
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) 2019-2024 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:"8.0", prefix:"libnss3", reference:"2:3.26-1+debu8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libnss3-1d", reference:"2:3.26-1+debu8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libnss3-dbg", reference:"2:3.26-1+debu8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libnss3-dev", reference:"2:3.26-1+debu8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libnss3-tools", reference:"2:3.26-1+debu8u5")) 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 | libnss3 | p-cpe:/a:debian:debian_linux:libnss3 |
debian | debian_linux | libnss3-1d | p-cpe:/a:debian:debian_linux:libnss3-1d |
debian | debian_linux | libnss3-dbg | p-cpe:/a:debian:debian_linux:libnss3-dbg |
debian | debian_linux | libnss3-dev | p-cpe:/a:debian:debian_linux:libnss3-dev |
debian | debian_linux | libnss3-tools | p-cpe:/a:debian:debian_linux:libnss3-tools |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.4 High
AI Score
Confidence
High
0.013 Low
EPSS
Percentile
85.9%