9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
0.008 Low
EPSS
Percentile
82.1%
Several vulnerabilities were discovered in libebml, a library for manipulating Extensible Binary Meta Language files.
CVE-2015-8789 Context-dependent attackers could trigger a use-after-free vulnerability by providing a maliciously crafted EBML document.
CVE-2015-8790 Context-dependent attackers could obtain sensitive information from the process’ heap memory by using a maliciously crafted UTF-8 string.
CVE-2015-8791 Context-dependent attackers could obtain sensitive information from the process’ heap memory by using a maliciously crafted length value in an EBML id.
#%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-3538. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(90281);
script_version("2.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-8789", "CVE-2015-8790", "CVE-2015-8791");
script_xref(name:"DSA", value:"3538");
script_name(english:"Debian DSA-3538-1 : libebml - 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 were discovered in libebml, a library for
manipulating Extensible Binary Meta Language files.
- CVE-2015-8789
Context-dependent attackers could trigger a
use-after-free vulnerability by providing a maliciously
crafted EBML document.
- CVE-2015-8790
Context-dependent attackers could obtain sensitive
information from the process' heap memory by using a
maliciously crafted UTF-8 string.
- CVE-2015-8791
Context-dependent attackers could obtain sensitive
information from the process' heap memory by using a
maliciously crafted length value in an EBML id."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-8789"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-8790"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-8791"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/libebml"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/libebml"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3538"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the libebml packages.
For the oldstable distribution (wheezy), these problems have been
fixed in version 1.2.2-2+deb7u1.
For the stable distribution (jessie), these problems have been fixed
in version 1.3.0-2+deb8u1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/S:C/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:libebml");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/03/31");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/04/01");
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:"7.0", prefix:"libebml-dev", reference:"1.2.2-2+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libebml3", reference:"1.2.2-2+deb7u1")) flag++;
if (deb_check(release:"8.0", prefix:"libebml-dev", reference:"1.3.0-2+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libebml4", reference:"1.3.0-2+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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libebml | p-cpe:/a:debian:debian_linux:libebml |
debian | debian_linux | 7.0 | cpe:/o:debian:debian_linux:7.0 |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8789
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8790
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8791
packages.debian.org/source/jessie/libebml
packages.debian.org/source/wheezy/libebml
security-tracker.debian.org/tracker/CVE-2015-8789
security-tracker.debian.org/tracker/CVE-2015-8790
security-tracker.debian.org/tracker/CVE-2015-8791
www.debian.org/security/2016/dsa-3538
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
0.008 Low
EPSS
Percentile
82.1%