Multiple vulnerabilities were discovered in cURL, an URL transfer library.
CVE-2018-1000120 Duy Phan Thanh discovered that curl could be fooled into writing a zero byte out of bounds when curl is told to work on an FTP URL with the setting to only issue a single CWD command, if the directory part of the URL contains a ‘%00’ sequence.
CVE-2018-1000121 Dario Weisser discovered that curl might dereference a near-NULL address when getting an LDAP URL due to the ldap_get_attribute_ber() function returning LDAP_SUCCESS and a NULL pointer. A malicious server might cause libcurl-using applications that allow LDAP URLs, or that allow redirects to LDAP URLs to crash.
CVE-2018-1000122 OSS-fuzz, assisted by Max Dymond, discovered that curl could be tricked into copying data beyond the end of its heap based buffer when asked to transfer an RTSP URL.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-4136. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include("compat.inc");
if (description)
{
script_id(108345);
script_version("1.6");
script_cvs_date("Date: 2018/11/13 12:30:46");
script_cve_id("CVE-2018-1000120", "CVE-2018-1000121", "CVE-2018-1000122");
script_xref(name:"DSA", value:"4136");
script_name(english:"Debian DSA-4136-1 : 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:
"Multiple vulnerabilities were discovered in cURL, an URL transfer
library.
- CVE-2018-1000120
Duy Phan Thanh discovered that curl could be fooled into
writing a zero byte out of bounds when curl is told to
work on an FTP URL with the setting to only issue a
single CWD command, if the directory part of the URL
contains a '%00' sequence.
- CVE-2018-1000121
Dario Weisser discovered that curl might dereference a
near-NULL address when getting an LDAP URL due to the
ldap_get_attribute_ber() function returning LDAP_SUCCESS
and a NULL pointer. A malicious server might cause
libcurl-using applications that allow LDAP URLs, or that
allow redirects to LDAP URLs to crash.
- CVE-2018-1000122
OSS-fuzz, assisted by Max Dymond, discovered that curl
could be tricked into copying data beyond the end of its
heap based buffer when asked to transfer an RTSP URL."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2018-1000120"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2018-1000121"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2018-1000122"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/source-package/curl"
);
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/2018/dsa-4136"
);
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+deb8u10.
For the stable distribution (stretch), these problems have been fixed
in version 7.52.1-5+deb9u5."
);
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:"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:"2018/03/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/15");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018 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+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-dbg", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-gnutls", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl3-nss", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-doc", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-gnutls-dev", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-nss-dev", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libcurl4-openssl-dev", reference:"7.38.0-4+deb8u10")) flag++;
if (deb_check(release:"9.0", prefix:"curl", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3-dbg", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3-gnutls", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl3-nss", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-doc", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-gnutls-dev", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-nss-dev", reference:"7.52.1-5+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"libcurl4-openssl-dev", reference:"7.52.1-5+deb9u5")) 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 | 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-2018-1000120
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000121
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000122
packages.debian.org/source/jessie/curl
packages.debian.org/source/stretch/curl
security-tracker.debian.org/tracker/CVE-2018-1000120
security-tracker.debian.org/tracker/CVE-2018-1000121
security-tracker.debian.org/tracker/CVE-2018-1000122
security-tracker.debian.org/tracker/source-package/curl
www.debian.org/security/2018/dsa-4136