5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
0.004 Low
EPSS
Percentile
74.9%
https://vulners.com/cve/CVE-2018-6922 https://vulners.com/cve/CVE-2018-6922 FreeBSD is vulnerable to a denial of service, caused by the use of an inefficient TCP reassembly algorithm. By sending specially-crafted TCP traffic, a remote attacker could exploit this vulnerability to consume all available CPU resources.
#
# (C) Tenable Network Security, Inc.
#
# The text in the description was extracted from AIX Security
# Advisory freebsd_advisory.asc.
#
include("compat.inc");
if (description)
{
script_id(118830);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/20");
script_cve_id("CVE-2018-6922");
script_name(english:"AIX 7.2 TL 2 : freebsd (IJ09624)");
script_summary(english:"Check for APAR IJ09624");
script_set_attribute(
attribute:"synopsis",
value:"The remote AIX host is missing a security patch."
);
script_set_attribute(
attribute:"description",
value:
"http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6922
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6922 FreeBSD
is vulnerable to a denial of service, caused by the use of an
inefficient TCP reassembly algorithm. By sending specially-crafted TCP
traffic, a remote attacker could exploit this vulnerability to consume
all available CPU resources."
);
script_set_attribute(
attribute:"see_also",
value:"https://aix.software.ibm.com/aix/efixes/security/freebsd_advisory.asc"
);
script_set_attribute(
attribute:"solution",
value:"Install the appropriate interim fix."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/A:L");
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:"cpe:/o:ibm:aix:7.2");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/08");
script_set_attribute(attribute:"patch_publication_date", value:"2018/11/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/09");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"AIX Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/AIX/lslpp", "Host/local_checks_enabled", "Host/AIX/version");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("aix.inc");
include("misc_func.inc");
if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if ( ! get_kb_item("Host/AIX/version") ) audit(AUDIT_OS_NOT, "AIX");
if ( ! get_kb_item("Host/AIX/lslpp") ) audit(AUDIT_PACKAGE_LIST_MISSING);
if ( get_kb_item("Host/AIX/emgr_failure" ) ) exit(0, "This iFix check is disabled because : "+get_kb_item("Host/AIX/emgr_failure") );
flag = 0;
if (aix_check_ifix(release:"7.2", ml:"02", sp:"00", patch:"IJ09624s0a", package:"bos.net.tcp.client_core", minfilesetver:"7.2.2.0", maxfilesetver:"7.2.2.17") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"02", sp:"00", patch:"IJ09624s0a", package:"bos.perf.perfstat", minfilesetver:"7.2.2.0", maxfilesetver:"7.2.2.16") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"02", sp:"01", patch:"IJ09624s1a", package:"bos.net.tcp.client_core", minfilesetver:"7.2.2.0", maxfilesetver:"7.2.2.17") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"02", sp:"01", patch:"IJ09624s1a", package:"bos.perf.perfstat", minfilesetver:"7.2.2.0", maxfilesetver:"7.2.2.16") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"02", sp:"02", patch:"IJ09624s2a", package:"bos.net.tcp.client_core", minfilesetver:"7.2.2.0", maxfilesetver:"7.2.2.17") < 0) flag++;
if (aix_check_ifix(release:"7.2", ml:"02", sp:"02", patch:"IJ09624s2a", package:"bos.perf.perfstat", minfilesetver:"7.2.2.0", maxfilesetver:"7.2.2.16") < 0) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:aix_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
0.004 Low
EPSS
Percentile
74.9%