Several vulnerabilities have been discovered in cURL, an URL transfer library. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2017-1000100 Even Rouault reported that cURL does not properly handle long file names when doing an TFTP upload. A malicious HTTP(S) server can take advantage of this flaw by redirecting a client using the cURL library to a crafted TFTP URL and trick it to send private memory contents to a remote server over UDP.
CVE-2017-1000101 Brian Carpenter and Yongji Ouyang reported that cURL contains a flaw in the globbing function that parses the numerical range, leading to an out-of-bounds read when parsing a specially crafted URL.
CVE-2017-1000254 Max Dymond reported that cURL contains an out-of-bounds read flaw in the FTP PWD response parser. A malicious server can take advantage of this flaw to effectively prevent a client using the cURL library to work with it, causing a denial of service.
#%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-3992. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(103715);
script_version("3.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2017-1000100", "CVE-2017-1000101", "CVE-2017-1000254");
script_xref(name:"DSA", value:"3992");
script_name(english:"Debian DSA-3992-1 : curl - security update");
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:
"Several vulnerabilities have been discovered in cURL, an URL transfer
library. The Common Vulnerabilities and Exposures project identifies
the following problems :
- CVE-2017-1000100
Even Rouault reported that cURL does not properly handle
long file names when doing an TFTP upload. A malicious
HTTP(S) server can take advantage of this flaw by
redirecting a client using the cURL library to a crafted
TFTP URL and trick it to send private memory contents to
a remote server over UDP.
- CVE-2017-1000101
Brian Carpenter and Yongji Ouyang reported that cURL
contains a flaw in the globbing function that parses the
numerical range, leading to an out-of-bounds read when
parsing a specially crafted URL.
- CVE-2017-1000254
Max Dymond reported that cURL contains an out-of-bounds
read flaw in the FTP PWD response parser. A malicious
server can take advantage of this flaw to effectively
prevent a client using the cURL library to work with it,
causing a denial of service."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871554"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871555"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877671"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-1000100"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-1000101"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-1000254"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/curl"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/stretch/curl"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2017/dsa-3992"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the curl packages.
For the oldstable distribution (jessie), these problems have been
fixed in version 7.38.0-4+deb8u6.
For the stable distribution (stretch), these problems have been fixed
in version 7.52.1-5+deb9u1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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_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:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"patch_publication_date", value:"2017/10/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/09");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 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+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-dbg", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-gnutls", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-nss", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-doc", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-gnutls-dev", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-nss-dev", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-openssl-dev", reference:"7.38.0-4+deb8u6")) flag++;
if (deb_check(release:"9.0", prefix:"curl", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3-dbg", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3-gnutls", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3-nss", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-doc", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-gnutls-dev", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-nss-dev", reference:"7.52.1-5+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-openssl-dev", reference:"7.52.1-5+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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | curl | p-cpe:/a:debian:debian_linux:curl |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000100
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000101
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000254
bugs.debian.org/cgi-bin/bugreport.cgi?bug=871554
bugs.debian.org/cgi-bin/bugreport.cgi?bug=871555
bugs.debian.org/cgi-bin/bugreport.cgi?bug=877671
packages.debian.org/source/jessie/curl
packages.debian.org/source/stretch/curl
security-tracker.debian.org/tracker/CVE-2017-1000100
security-tracker.debian.org/tracker/CVE-2017-1000101
security-tracker.debian.org/tracker/CVE-2017-1000254
www.debian.org/security/2017/dsa-3992