CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
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
EPSS
Percentile
90.2%
Several security vulnerabilities were found in botan1.10, a C++ library which provides support for many common cryptographic operations, including encryption, authentication, X.509v3 certificates and CRLs.
CVE-2015-5726 The BER decoder would crash due to reading from offset 0 of an empty vector if it encountered a BIT STRING which did not contain any data at all. This can be used to easily crash applications reading untrusted ASN.1 data, but does not seem exploitable for code execution.
CVE-2015-5727 The BER decoder would allocate a fairly arbitrary amount of memory in a length field, even if there was no chance the read request would succeed. This might cause the process to run out of memory or invoke the OOM killer.
CVE-2015-7827 Use constant time PKCS #1 unpadding to avoid possible side channel attack against RSA decryption
CVE-2016-2194 Infinite loop in modular square root algorithm. The ressol function implementing the Tonelli-Shanks algorithm for finding square roots could be sent into a nearly infinite loop due to a misplaced conditional check. This could occur if a composite modulus is provided, as this algorithm is only defined for primes.
This function is exposed to attacker controlled input via the OS2ECP function during ECC point decompression.
CVE-2016-2195 Fix Heap overflow on invalid ECC point.
CVE-2016-2849 Use constant time modular inverse algorithm to avoid possible side channel attack against ECDSA.
#%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-3565. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(90841);
script_version("2.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-5726", "CVE-2015-5727", "CVE-2015-7827", "CVE-2016-2194", "CVE-2016-2195", "CVE-2016-2849");
script_xref(name:"DSA", value:"3565");
script_name(english:"Debian DSA-3565-1 : botan1.10 - 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 security vulnerabilities were found in botan1.10, a C++
library which provides support for many common cryptographic
operations, including encryption, authentication, X.509v3 certificates
and CRLs.
- CVE-2015-5726
The BER decoder would crash due to reading from offset 0
of an empty vector if it encountered a BIT STRING which
did not contain any data at all. This can be used to
easily crash applications reading untrusted ASN.1 data,
but does not seem exploitable for code execution.
- CVE-2015-5727
The BER decoder would allocate a fairly arbitrary amount
of memory in a length field, even if there was no chance
the read request would succeed. This might cause the
process to run out of memory or invoke the OOM killer.
- CVE-2015-7827
Use constant time PKCS #1 unpadding to avoid possible
side channel attack against RSA decryption
- CVE-2016-2194
Infinite loop in modular square root algorithm. The
ressol function implementing the Tonelli-Shanks
algorithm for finding square roots could be sent into a
nearly infinite loop due to a misplaced conditional
check. This could occur if a composite modulus is
provided, as this algorithm is only defined for primes.
This function is exposed to attacker controlled input
via the OS2ECP function during ECC point decompression.
- CVE-2016-2195
Fix Heap overflow on invalid ECC point.
- CVE-2016-2849
Use constant time modular inverse algorithm to avoid
possible side channel attack against ECDSA."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=817932"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=822698"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-5726"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-5727"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-7827"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2194"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2195"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2849"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/botan1.10"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3565"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the botan1.10 packages.
For the stable distribution (jessie), these problems have been fixed
in version 1.10.8-2+deb8u1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
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:H/A:H");
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:botan1.10");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/05/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/03");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 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:"botan1.10-dbg", reference:"1.10.8-2+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libbotan-1.10-0", reference:"1.10.8-2+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libbotan1.10-dev", reference:"1.10.8-2+deb8u1")) 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");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5726
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5727
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7827
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2194
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2195
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2849
bugs.debian.org/cgi-bin/bugreport.cgi?bug=817932
bugs.debian.org/cgi-bin/bugreport.cgi?bug=822698
packages.debian.org/source/jessie/botan1.10
security-tracker.debian.org/tracker/CVE-2015-5726
security-tracker.debian.org/tracker/CVE-2015-5727
security-tracker.debian.org/tracker/CVE-2015-7827
security-tracker.debian.org/tracker/CVE-2016-2194
security-tracker.debian.org/tracker/CVE-2016-2195
security-tracker.debian.org/tracker/CVE-2016-2849
www.debian.org/security/2016/dsa-3565
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
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
EPSS
Percentile
90.2%