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This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DLA-2353.NASLHistoryAug 31, 2020 - 12:00 a.m.
Debian DLA-2353-1 : bacula security update
2020-08-3100:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
9
debian bacula update
denial of service
heap overflow
CVSS2
6
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS3
7.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
EPSS
0.002
Percentile
59.4%
An issue has been found in bacula, a network backup service. By sending oversized digest strings a malicious client can cause a heap overflow in the director’s memory which results in a denial of service.
For Debian 9 stretch, this problem has been fixed in version 7.4.4+dfsg-6+deb9u2.
We recommend that you upgrade your bacula packages.
For the detailed security status of bacula please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/bacula
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2353-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(140052);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/22");
script_cve_id("CVE-2020-11061");
script_name(english:"Debian DLA-2353-1 : bacula security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"An issue has been found in bacula, a network backup service. By
sending oversized digest strings a malicious client can cause a heap
overflow in the director's memory which results in a denial of
service.
For Debian 9 stretch, this problem has been fixed in version
7.4.4+dfsg-6+deb9u2.
We recommend that you upgrade your bacula packages.
For the detailed security status of bacula please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/bacula
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/08/msg00051.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/bacula");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/bacula");
script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P");
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:L/UI:N/S:C/C:L/I:L/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-11061");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/10");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/31");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-bscan");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-client");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-common-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-common-pgsql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-common-sqlite3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-console");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-console-qt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-director");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-director-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-director-pgsql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-director-sqlite3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-fd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-sd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bacula-server");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
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:"9.0", prefix:"bacula", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-bscan", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-client", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-common", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-common-mysql", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-common-pgsql", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-common-sqlite3", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-console", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-console-qt", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-director", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-director-mysql", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-director-pgsql", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-director-sqlite3", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-fd", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-sd", reference:"7.4.4+dfsg-6+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"bacula-server", reference:"7.4.4+dfsg-6+deb9u2")) 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");
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CVSS2
6
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS3
7.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
EPSS
0.002
Percentile
59.4%
Related for DEBIAN_DLA-2353.NASL