CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
75.5%
Multiple vulnerabilities have been discovered in GnuTLS, a library implementing the TLS and SSL protocols. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2015-0282 GnuTLS does not verify the RSA PKCS #1 signature algorithm to match the signature algorithm in the certificate, leading to a potential downgrade to a disallowed algorithm without detecting it.
CVE-2015-0294 It was reported that GnuTLS does not check whether the two signature algorithms match on certificate import.
#%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-3191. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(81835);
script_version("1.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-0282", "CVE-2015-0294");
script_bugtraq_id(73119);
script_xref(name:"DSA", value:"3191");
script_name(english:"Debian DSA-3191-1 : gnutls26 - 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 have been discovered in GnuTLS, a library
implementing the TLS and SSL protocols. The Common Vulnerabilities and
Exposures project identifies the following problems :
- CVE-2015-0282
GnuTLS does not verify the RSA PKCS #1 signature
algorithm to match the signature algorithm in the
certificate, leading to a potential downgrade to a
disallowed algorithm without detecting it.
- CVE-2015-0294
It was reported that GnuTLS does not check whether the
two signature algorithms match on certificate import."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-0282"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-0294"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/gnutls26"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2015/dsa-3191"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the gnutls26 packages.
For the stable distribution (wheezy), these problems have been fixed
in version 2.12.20-8+deb7u3."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/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:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gnutls26");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/03/24");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/17");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 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:"7.0", prefix:"gnutls-bin", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"gnutls26-doc", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"guile-gnutls", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libgnutls-dev", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libgnutls-openssl27", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libgnutls26", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libgnutls26-dbg", reference:"2.12.20-8+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libgnutlsxx27", reference:"2.12.20-8+deb7u3")) 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");
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
75.5%