CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
93.9%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.871680");
script_version("2024-03-21T05:06:54+0000");
script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
script_tag(name:"creation_date", value:"2016-11-04 05:41:12 +0100 (Fri, 04 Nov 2016)");
script_cve_id("CVE-2016-3119", "CVE-2016-3120");
script_tag(name:"cvss_base", value:"4.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-01-21 15:47:00 +0000 (Tue, 21 Jan 2020)");
script_tag(name:"qod_type", value:"package");
script_name("RedHat Update for krb5 RHSA-2016:2591-02");
script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5'
package(s) announced via the referenced advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Kerberos is a network authentication system,
which can improve the security of your network by eliminating the insecure practice
of sending passwords over the network in unencrypted form. It allows clients and
servers to authenticate to each other with the help of a trusted third party, the
Kerberos key distribution center (KDC).
The following packages have been upgraded to a newer upstream version: krb5
(1.14.1). (BZ#1292153)
Security Fix(es):
* A NULL pointer dereference flaw was found in MIT Kerberos kadmind
service. An authenticated attacker with permission to modify a principal
entry could use this flaw to cause kadmind to dereference a null pointer
and crash by supplying an empty DB argument to the modify_principal
command, if kadmind was configured to use the LDAP KDB module.
(CVE-2016-3119)
* A NULL pointer dereference flaw was found in MIT Kerberos krb5kdc
service. An authenticated attacker could use this flaw to cause krb5kdc to
dereference a null pointer and crash by making an S4U2Self request, if the
restrict_anonymous_to_tgt option was set to true. (CVE-2016-3120)
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 Release Notes linked from the References section.");
script_tag(name:"affected", value:"krb5 on
Red Hat Enterprise Linux Server (v. 7)");
script_tag(name:"solution", value:"Please Install the Updated Packages.");
script_xref(name:"RHSA", value:"2016:2591-02");
script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2016-November/msg00027.html");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2016 Greenbone AG");
script_family("Red Hat Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_7");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release) exit(0);
res = "";
if(release == "RHENT_7")
{
if ((res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-pkinit", rpm:"krb5-pkinit~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-server-ldap", rpm:"krb5-server-ldap~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"libkadm5", rpm:"libkadm5~1.14.1~26.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
93.9%