Vulnerabilities > CVE-2019-12625 - Improper Resource Shutdown or Release vulnerability in Clamav

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
clamav
CWE-404
nessus
NVD
Published: 2019-11-05
Updated: 2019-12-01

Summary

ClamAV versions prior to 0.101.3 are susceptible to a zip bomb vulnerability where an unauthenticated attacker can cause a denial of service condition by sending crafted messages to an affected system.

Vulnerable Configurations

Part Description Count
Application
Clamav
166

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Flooding
    An attacker consumes the resources of a target by rapidly engaging in a large number of interactions with the target. This type of attack generally exposes a weakness in rate limiting or flow control in management of interactions. Since each request consumes some of the target's resources, if a sufficiently large number of requests must be processed at the same time then the target's resources can be exhausted. The degree to which the attack is successful depends upon the volume of requests in relation to the amount of the resource the target has access to, and other mitigating circumstances such as the target's ability to shift load or acquired additional resources to deal with the depletion. The more protected the resource and the greater the quantity of it that must be consumed, the more resources the attacker may need to have at their disposal. A typical TCP/IP flooding attack is a Distributed Denial-of-Service attack where many machines simultaneously make a large number of requests to a target. Against a target with strong defenses and a large pool of resources, many tens of thousands of attacking machines may be required. When successful this attack prevents legitimate users from accessing the service and can cause the target to crash. This attack differs from resource depletion through leaks or allocations in that the latter attacks do not rely on the volume of requests made to the target but instead focus on manipulation of the target's operations. The key factor in a flooding attack is the number of requests the attacker can make in a given period of time. The greater this number, the more likely an attack is to succeed against a given target.
  • Excessive Allocation
    An attacker causes the target to allocate excessive resources to servicing the attackers' request, thereby reducing the resources available for legitimate services and degrading or denying services. Usually, this attack focuses on memory allocation, but any finite resource on the target could be the attacked, including bandwidth, processing cycles, or other resources. This attack does not attempt to force this allocation through a large number of requests (that would be Resource Depletion through Flooding) but instead uses one or a small number of requests that are carefully formatted to force the target to allocate excessive resources to service this request(s). Often this attack takes advantage of a bug in the target to cause the target to allocate resources vastly beyond what would be needed for a normal request. For example, using an Integer Attack, the attacker could cause a variable that controls allocation for a request to hold an excessively large value. Excessive allocation of resources can render a service degraded or unavailable to legitimate users and can even lead to crashing of the target.
  • Resource Leak Exposure
    An attacker utilizes a resource leak on the target to deplete the quantity of the resource available to service legitimate requests. Resource leaks most often come in the form of memory leaks where memory is allocated but never released after it has served its purpose, however, theoretically, any other resource that can be reserved can be targeted if the target fails to release the reservation when the reserved resource block is no longer needed. In this attack, the attacker determines what activity results in leaked resources and then triggers that activity on the target. Since some leaks may be small, this may require a large number of requests by the attacker. However, this attack differs from a flooding attack in that the rate of requests is generally not significant. This is because the lost resources due to the leak accumulate until the target is reset, usually by restarting it. Thus, a resource-poor attacker who would be unable to flood the target can still utilize this attack. Resource depletion through leak differs from resource depletion through allocation in that, in the former, the attacker may not be able to control the size of each leaked allocation, but instead allows the leak to accumulate until it is large enough to affect the target's performance. When depleting resources through allocation, the allocated resource may eventually be released by the target so the attack relies on making sure that the allocation size itself is prohibitive of normal operations by the target.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-5C2DC50262.NASL
    descriptionClamAV 0.101.4 is a security patch release that addresses the following issues. - An out of bounds write was possible within ClamAV
    last seen2020-06-01
    modified2020-06-02
    plugin id128132
    published2019-08-26
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/128132
    titleFedora 30 : clamav (2019-5c2dc50262)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2019-5c2dc50262.
#

include("compat.inc");

if (description)
{
  script_id(128132);
  script_version("1.3");
  script_cvs_date("Date: 2020/01/02");

  script_cve_id("CVE-2019-12625", "CVE-2019-12900");
  script_xref(name:"FEDORA", value:"2019-5c2dc50262");

  script_name(english:"Fedora 30 : clamav (2019-5c2dc50262)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"ClamAV 0.101.4 is a security patch release that addresses the
following issues.

  - An out of bounds write was possible within ClamAV's NSIS
    bzip2 library when attempting decompression in cases
    where the number of selectors exceeded the max limit set
    by the library (CVE-2019-12900). The issue has been
    resolved by respecting that limit.

    Thanks to Martin Simmons for reporting the issue here.

  - The zip bomb vulnerability mitigated in 0.101.3 has been
    assigned the CVE identifier CVE-2019-12625.
    Unfortunately, a workaround for the zip-bomb mitigation
    was immediately identified. To remediate the zip-bomb
    scan time issue, a scan time limit has been introduced
    in 0.101.4. This limit now resolves ClamAV's
    vulnerability to CVE-2019-12625.

    The default scan time limit is 2 minutes (120000
    milliseconds).

    To customize the time limit :

  - use the clamscan --max-scantime option

  - use the clamd MaxScanTime config option

    Libclamav users may customize the time limit using the
    cl_engine_set_num function. For example :

    C cl_engine_set_num(engine, CL_ENGINE_MAX_SCANTIME,
    time_limit_milliseconds)

    Thanks to David Fifield for reviewing the zip-bomb
    mitigation in 0.101.3 and reporting the issue.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2019-5c2dc50262"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected clamav package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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: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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:clamav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:30");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^30([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 30", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC30", reference:"clamav-0.101.4-1.fc30")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "clamav");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2019-3066-1.NASL
    descriptionThis update for clamav fixes the following issues : Security issue fixed : CVE-2019-12625: Fixed a ZIP bomb issue by adding detection and heuristics for zips with overlapping files (bsc#1144504). CVE-2019-12900: Fixed an out-of-bounds write in decompress.c with many selectors (bsc#1149458). Non-security issues fixed: Added the --max-scantime clamscan option and MaxScanTime clamd configuration option (bsc#1144504). Increased the startup timeout of clamd to 5 minutes to cater for the grown virus database as a workaround until clamd has learned to talk to systemd to extend the timeout as long as needed (bsc#1151839). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id131385
    published2019-11-27
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131385
    titleSUSE SLED12 / SLES12 Security Update : clamav (SUSE-SU-2019:3066-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:3066-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(131385);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/09");

  script_cve_id("CVE-2019-12625", "CVE-2019-12900");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : clamav (SUSE-SU-2019:3066-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for clamav fixes the following issues :

Security issue fixed :

CVE-2019-12625: Fixed a ZIP bomb issue by adding detection and
heuristics for zips with overlapping files (bsc#1144504).

CVE-2019-12900: Fixed an out-of-bounds write in decompress.c with many
selectors (bsc#1149458).

Non-security issues fixed: Added the --max-scantime clamscan option
and MaxScanTime clamd configuration option (bsc#1144504).

Increased the startup timeout of clamd to 5 minutes to cater for the
grown virus database as a workaround until clamd has learned to talk
to systemd to extend the timeout as long as needed (bsc#1151839).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=1144504"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1149458"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1151839"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12625/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12900/"
  );
  # https://www.suse.com/support/update/announcement/2019/suse-su-20193066-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f4aae87b"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE OpenStack Cloud Crowbar 8:zypper in -t patch
SUSE-OpenStack-Cloud-Crowbar-8-2019-3066=1

SUSE OpenStack Cloud 8:zypper in -t patch
SUSE-OpenStack-Cloud-8-2019-3066=1

SUSE OpenStack Cloud 7:zypper in -t patch
SUSE-OpenStack-Cloud-7-2019-3066=1

SUSE Linux Enterprise Server for SAP 12-SP3:zypper in -t patch
SUSE-SLE-SAP-12-SP3-2019-3066=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch
SUSE-SLE-SAP-12-SP2-2019-3066=1

SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch
SUSE-SLE-SAP-12-SP1-2019-3066=1

SUSE Linux Enterprise Server 12-SP4:zypper in -t patch
SUSE-SLE-SERVER-12-SP4-2019-3066=1

SUSE Linux Enterprise Server 12-SP3-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2019-3066=1

SUSE Linux Enterprise Server 12-SP3-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-BCL-2019-3066=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2019-3066=1

SUSE Linux Enterprise Server 12-SP2-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-BCL-2019-3066=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2019-3066=1

SUSE Linux Enterprise Desktop 12-SP4:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP4-2019-3066=1

SUSE Enterprise Storage 5:zypper in -t patch
SUSE-Storage-5-2019-3066=1

HPE Helion Openstack 8:zypper in -t patch
HPE-Helion-OpenStack-8-2019-3066=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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: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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1|2|3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1/2/3/4", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"clamav-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"clamav-debuginfo-0.100.3-33.26.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"clamav-debugsource-0.100.3-33.26.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "clamav");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2019-3053-1.NASL
    descriptionThis update for clamav fixes the following issues : Security issue fixed : CVE-2019-12625: Fixed a ZIP bomb issue by adding detection and heuristics for zips with overlapping files (bsc#1144504). CVE-2019-12900: Fixed an out-of-bounds write in decompress.c with many selectors (bsc#1149458). Non-security issues fixed: Added the --max-scantime clamscan option and MaxScanTime clamd configuration option (bsc#1144504). Increased the startup timeout of clamd to 5 minutes to cater for the grown virus database as a workaround until clamd has learned to talk to systemd to extend the timeout as long as needed (bsc#1151839). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id131305
    published2019-11-26
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131305
    titleSUSE SLED15 / SLES15 Security Update : clamav (SUSE-SU-2019:3053-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:3053-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(131305);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/09");

  script_cve_id("CVE-2019-12625", "CVE-2019-12900");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : clamav (SUSE-SU-2019:3053-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for clamav fixes the following issues :

Security issue fixed :

CVE-2019-12625: Fixed a ZIP bomb issue by adding detection and
heuristics for zips with overlapping files (bsc#1144504).

CVE-2019-12900: Fixed an out-of-bounds write in decompress.c with many
selectors (bsc#1149458).

Non-security issues fixed: Added the --max-scantime clamscan option
and MaxScanTime clamd configuration option (bsc#1144504).

Increased the startup timeout of clamd to 5 minutes to cater for the
grown virus database as a workaround until clamd has learned to talk
to systemd to extend the timeout as long as needed (bsc#1151839).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=1144504"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1149458"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1151839"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12625/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12900/"
  );
  # https://www.suse.com/support/update/announcement/2019/suse-su-20193053-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?eda89089"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Basesystem 15-SP1:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-SP1-2019-3053=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-2019-3053=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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: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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:clamav-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libclamav7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libclamav7-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libclammspack0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libclammspack0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(0|1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0/1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(0|1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP0/1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"clamav-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"clamav-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"clamav-debugsource-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"clamav-devel-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libclamav7-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libclamav7-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libclammspack0-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libclammspack0-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"clamav-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"clamav-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"clamav-debugsource-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"clamav-devel-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libclamav7-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libclamav7-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libclammspack0-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"libclammspack0-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"clamav-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"clamav-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"clamav-debugsource-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"clamav-devel-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libclamav7-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libclamav7-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libclammspack0-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"libclammspack0-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"clamav-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"clamav-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"clamav-debugsource-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"clamav-devel-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libclamav7-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libclamav7-debuginfo-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libclammspack0-0.100.3-3.14.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"libclammspack0-debuginfo-0.100.3-3.14.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "clamav");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-AABCB53EC6.NASL
    descriptionClamAV 0.101.4 is a security patch release that addresses the following issues. - An out of bounds write was possible within ClamAV
    last seen2020-06-01
    modified2020-06-02
    plugin id128437
    published2019-09-03
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/128437
    titleFedora 29 : clamav (2019-aabcb53ec6)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2019-aabcb53ec6.
#

include("compat.inc");

if (description)
{
  script_id(128437);
  script_version("1.3");
  script_cvs_date("Date: 2019/12/31");

  script_cve_id("CVE-2019-12625", "CVE-2019-12900");
  script_xref(name:"FEDORA", value:"2019-aabcb53ec6");

  script_name(english:"Fedora 29 : clamav (2019-aabcb53ec6)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"ClamAV 0.101.4 is a security patch release that addresses the
following issues.

  - An out of bounds write was possible within ClamAV's NSIS
    bzip2 library when attempting decompression in cases
    where the number of selectors exceeded the max limit set
    by the library (CVE-2019-12900). The issue has been
    resolved by respecting that limit.

    Thanks to Martin Simmons for reporting the issue here.

  - The zip bomb vulnerability mitigated in 0.101.3 has been
    assigned the CVE identifier CVE-2019-12625.
    Unfortunately, a workaround for the zip-bomb mitigation
    was immediately identified. To remediate the zip-bomb
    scan time issue, a scan time limit has been introduced
    in 0.101.4. This limit now resolves ClamAV's
    vulnerability to CVE-2019-12625.

    The default scan time limit is 2 minutes (120000
    milliseconds).

    To customize the time limit :

  - use the clamscan --max-scantime option

  - use the clamd MaxScanTime config option

    Libclamav users may customize the time limit using the
    cl_engine_set_num function. For example :

    C cl_engine_set_num(engine, CL_ENGINE_MAX_SCANTIME,
    time_limit_milliseconds)

    Thanks to David Fifield for reviewing the zip-bomb
    mitigation in 0.101.3 and reporting the issue.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2019-aabcb53ec6"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected clamav package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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: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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:clamav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:29");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^29([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 29", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC29", reference:"clamav-0.101.4-1.fc29")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "clamav");
}
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-4146-1.NASL
    descriptionIt was discovered that ClamAV incorrectly handled unpacking ZIP files. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2019-12625) It was discovered that ClamAV incorrectly handled unpacking bzip2 files. A remote attacker could use this issue to cause ClamAV to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-12900). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id129556
    published2019-10-03
    reporterUbuntu Security Notice (C) 2019 Canonical, Inc. / NASL script (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/129556
    titleUbuntu 16.04 LTS / 18.04 LTS / 19.04 : clamav vulnerabilities (USN-4146-1)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2019-2597.NASL
    descriptionThis update for clamav fixes the following issues : Security issue fixed : - CVE-2019-12625: Fixed a ZIP bomb issue by adding detection and heuristics for zips with overlapping files (bsc#1144504). - CVE-2019-12900: Fixed an out-of-bounds write in decompress.c with many selectors (bsc#1149458). Non-security issues fixed : - Added the --max-scantime clamscan option and MaxScanTime clamd configuration option (bsc#1144504). - Increased the startup timeout of clamd to 5 minutes to cater for the grown virus database as a workaround until clamd has learned to talk to systemd to extend the timeout as long as needed (bsc#1151839). This update was imported from the SUSE:SLE-15:Update update project.
    last seen2020-06-01
    modified2020-06-02
    plugin id131540
    published2019-12-03
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131540
    titleopenSUSE Security Update : clamav (openSUSE-2019-2597)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1953.NASL
    descriptionThe update of clamav released as DLA 1953-1 led to permission issues on /var/run/clamav. This caused several users to experience issues restarting the clamav daemon. This regression is caused by a mistakenly backported patch from the stretch package, upon which this update was based. For Debian 8
    last seen2020-06-01
    modified2020-06-02
    plugin id129799
    published2019-10-11
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/129799
    titleDebian DLA-1953-2 : clamav regression update
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_DBD1F627C43B11E9A9239C5C8E75236A.NASL
    descriptionMicah Snyder reports : - An out of bounds write was possible within ClamAV&s NSIS bzip2 library when attempting decompression in cases where the number of selectors exceeded the max limit set by the library (CVE-2019-12900). The issue has been resolved by respecting that limit. - The zip bomb vulnerability mitigated in 0.101.3 has been assigned the CVE identifier CVE-2019-12625. Unfortunately, a workaround for the zip-bomb mitigation was immediately identified. To remediate the zip-bomb scan time issue, a scan time limit has been introduced in 0.101.4. This limit now resolves ClamAV
    last seen2020-06-01
    modified2020-06-02
    plugin id128137
    published2019-08-26
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/128137
    titleFreeBSD : clamav -- multiple vulnerabilities (dbd1f627-c43b-11e9-a923-9c5c8e75236a)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2019-2595.NASL
    descriptionThis update for clamav fixes the following issues : Security issue fixed : - CVE-2019-12625: Fixed a ZIP bomb issue by adding detection and heuristics for zips with overlapping files (bsc#1144504). - CVE-2019-12900: Fixed an out-of-bounds write in decompress.c with many selectors (bsc#1149458). Non-security issues fixed : - Added the --max-scantime clamscan option and MaxScanTime clamd configuration option (bsc#1144504). - Increased the startup timeout of clamd to 5 minutes to cater for the grown virus database as a workaround until clamd has learned to talk to systemd to extend the timeout as long as needed (bsc#1151839). This update was imported from the SUSE:SLE-15:Update update project.
    last seen2020-06-01
    modified2020-06-02
    plugin id131538
    published2019-12-03
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131538
    titleopenSUSE Security Update : clamav (openSUSE-2019-2595)

References