7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.016 Low
EPSS
Percentile
87.4%
Several vulnerabilities were discovered in cURL, an URL transfer library.
CVE-2016-7141
When built with NSS and the libnsspem.so library is available at runtime, allows an remote attacker to hijack the authentication of a TLS connection by leveraging reuse of a previously loaded client certificate from file for a connection for which no certificate has been set, a different vulnerability than CVE-2016-5420.
CVE-2016-7167
Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl allow attackers to have unspecified impact via a string of length 0xffffffff, which triggers a heap-based buffer overflow.
CVE-2016-9586
Curl is vulnerable to a buffer overflow when doing a large floating point output in libcurl’s implementation of the printf() functions. If there are any applications that accept a format string from the outside without necessary input filtering, it could allow remote attacks.
CVE-2018-16839
Curl is vulnerable to a buffer overrun in the SASL authentication code that may lead to denial of service.
CVE-2018-16842
Curl is vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function that may result in information exposure and denial of service.
For Debian 8 ‘Jessie’, these problems have been fixed in version 7.38.0-4+deb8u13.
We recommend that you upgrade your curl 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-1568-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(118753);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-7141", "CVE-2016-7167", "CVE-2016-9586", "CVE-2018-16839", "CVE-2018-16842");
script_name(english:"Debian DLA-1568-1 : curl 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:
"Several vulnerabilities were discovered in cURL, an URL transfer
library.
CVE-2016-7141
When built with NSS and the libnsspem.so library is available at
runtime, allows an remote attacker to hijack the authentication of a
TLS connection by leveraging reuse of a previously loaded client
certificate from file for a connection for which no certificate has
been set, a different vulnerability than CVE-2016-5420.
CVE-2016-7167
Multiple integer overflows in the (1) curl_escape, (2)
curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape
functions in libcurl allow attackers to have unspecified impact via a
string of length 0xffffffff, which triggers a heap-based buffer
overflow.
CVE-2016-9586
Curl is vulnerable to a buffer overflow when doing a large floating
point output in libcurl's implementation of the printf() functions. If
there are any applications that accept a format string from the
outside without necessary input filtering, it could allow remote
attacks.
CVE-2018-16839
Curl is vulnerable to a buffer overrun in the SASL authentication code
that may lead to denial of service.
CVE-2018-16842
Curl is vulnerable to a heap-based buffer over-read in the
tool_msgs.c:voutf() function that may result in information exposure
and denial of service.
For Debian 8 'Jessie', these problems have been fixed in version
7.38.0-4+deb8u13.
We recommend that you upgrade your curl 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/2018/11/msg00005.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/curl"
);
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:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:curl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl3-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl3-gnutls");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl3-nss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl4-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl4-gnutls-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl4-nss-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcurl4-openssl-dev");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2018/11/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/07");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2021 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:"8.0", prefix:"curl", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-dbg", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-gnutls", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-nss", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-doc", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-gnutls-dev", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-nss-dev", reference:"7.38.0-4+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-openssl-dev", reference:"7.38.0-4+deb8u13")) 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 | curl | p-cpe:/a:debian:debian_linux:curl |
debian | debian_linux | libcurl3 | p-cpe:/a:debian:debian_linux:libcurl3 |
debian | debian_linux | libcurl3-dbg | p-cpe:/a:debian:debian_linux:libcurl3-dbg |
debian | debian_linux | libcurl3-gnutls | p-cpe:/a:debian:debian_linux:libcurl3-gnutls |
debian | debian_linux | libcurl3-nss | p-cpe:/a:debian:debian_linux:libcurl3-nss |
debian | debian_linux | libcurl4-doc | p-cpe:/a:debian:debian_linux:libcurl4-doc |
debian | debian_linux | libcurl4-gnutls-dev | p-cpe:/a:debian:debian_linux:libcurl4-gnutls-dev |
debian | debian_linux | libcurl4-nss-dev | p-cpe:/a:debian:debian_linux:libcurl4-nss-dev |
debian | debian_linux | libcurl4-openssl-dev | p-cpe:/a:debian:debian_linux:libcurl4-openssl-dev |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7141
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7167
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9586
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16839
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16842
lists.debian.org/debian-lts-announce/2018/11/msg00005.html
packages.debian.org/source/jessie/curl
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.016 Low
EPSS
Percentile
87.4%