CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
AI Score
Confidence
High
EPSS
Percentile
97.9%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2011 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_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2009-April/015788.html");
script_oid("1.3.6.1.4.1.25623.1.0.880892");
script_version("2023-07-12T05:05:04+0000");
script_tag(name:"last_modification", value:"2023-07-12 05:05:04 +0000 (Wed, 12 Jul 2023)");
script_tag(name:"creation_date", value:"2011-08-09 08:20:34 +0200 (Tue, 09 Aug 2011)");
script_tag(name:"cvss_base", value:"10.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_xref(name:"CESA", value:"2009:0410-01");
script_cve_id("CVE-2009-0846");
script_name("CentOS Update for krb5 CESA-2009:0410-01 centos2 i386");
script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5'
package(s) announced via the referenced advisory.");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2011 Greenbone AG");
script_family("CentOS Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS2");
script_tag(name:"affected", value:"krb5 on CentOS 2");
script_tag(name:"insight", value:"Kerberos is a network authentication system which allows clients and
servers to authenticate to each other using symmetric encryption and a
trusted third party, the Key Distribution Center (KDC).
An input validation flaw was found in the ASN.1 (Abstract Syntax Notation
One) decoder used by MIT Kerberos. A remote attacker could use this flaw to
crash a network service using the MIT Kerberos library, such as kadmind or
krb5kdc, by causing it to dereference or free an uninitialized pointer or,
possibly, execute arbitrary code with the privileges of the user running
the service. (CVE-2009-0846)
All krb5 users should upgrade to these updated packages, which contain a
backported patch to correct this issue. All running services using the MIT
Kerberos libraries must be restarted for the update to take effect.");
script_tag(name:"solution", value:"Please install the updated packages.");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
if(release == "CentOS2")
{
if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.2.2~49", rls:"CentOS2")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.2.2~49", rls:"CentOS2")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.2.2~49", rls:"CentOS2")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.2.2~49", rls:"CentOS2")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}