CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
EPSS
Percentile
98.5%
krb5 was updated to fix three security issues.
These security issues were fixed :
CVE-2015-2695: Applications which call gss_inquire_context() on a partially-established SPNEGO context could have caused the GSS-API library to read from a pointer using the wrong type, generally causing a process crash. (bsc#952188).
CVE-2015-2696: Applications which call gss_inquire_context() on a partially-established IAKERB context could have caused the GSS-API library to read from a pointer using the wrong type, generally causing a process crash. (bsc#952189).
CVE-2015-2697: Incorrect string handling in build_principal_va can lead to DOS (bsc#952190).
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:1897-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(86754);
script_version("2.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2015-2695", "CVE-2015-2696", "CVE-2015-2697");
script_name(english:"SUSE SLED12 / SLES12 Security Update : krb5 (SUSE-SU-2015:1897-1)");
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:
"krb5 was updated to fix three security issues.
These security issues were fixed :
- CVE-2015-2695: Applications which call
gss_inquire_context() on a partially-established SPNEGO
context could have caused the GSS-API library to read
from a pointer using the wrong type, generally causing a
process crash. (bsc#952188).
- CVE-2015-2696: Applications which call
gss_inquire_context() on a partially-established IAKERB
context could have caused the GSS-API library to read
from a pointer using the wrong type, generally causing a
process crash. (bsc#952189).
- CVE-2015-2697: Incorrect string handling in
build_principal_va can lead to DOS (bsc#952190).
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=948011"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=952188"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=952189"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=952190"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2015-2695/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2015-2696/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2015-2697/"
);
# https://www.suse.com/support/update/announcement/2015/suse-su-20151897-1.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?792e4e19"
);
script_set_attribute(
attribute:"solution",
value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Software Development Kit 12 :
zypper in -t patch SUSE-SLE-SDK-12-2015-792=1
SUSE Linux Enterprise Server 12 :
zypper in -t patch SUSE-SLE-SERVER-12-2015-792=1
SUSE Linux Enterprise Desktop 12 :
zypper in -t patch SUSE-SLE-DESKTOP-12-2015-792=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/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:"p-cpe:/a:novell:suse_linux:krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-client");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-client-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-pkinit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-pkinit-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-server-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/08");
script_set_attribute(attribute:"patch_publication_date", value:"2015/10/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/05");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 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:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP0", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-client-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-client-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-debugsource-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-doc-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-plugin-kdb-ldap-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-plugin-kdb-ldap-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-plugin-preauth-otp-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-plugin-preauth-otp-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-plugin-preauth-pkinit-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-plugin-preauth-pkinit-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-server-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-server-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-32bit-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"krb5-debuginfo-32bit-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-32bit-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-client-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-client-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-debuginfo-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-debuginfo-32bit-1.12.1-19.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"krb5-debugsource-1.12.1-19.1")) 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, "krb5");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | krb5 | p-cpe:/a:novell:suse_linux:krb5 |
novell | suse_linux | krb5-client | p-cpe:/a:novell:suse_linux:krb5-client |
novell | suse_linux | krb5-client-debuginfo | p-cpe:/a:novell:suse_linux:krb5-client-debuginfo |
novell | suse_linux | krb5-debuginfo | p-cpe:/a:novell:suse_linux:krb5-debuginfo |
novell | suse_linux | krb5-debugsource | p-cpe:/a:novell:suse_linux:krb5-debugsource |
novell | suse_linux | krb5-doc | p-cpe:/a:novell:suse_linux:krb5-doc |
novell | suse_linux | krb5-plugin-kdb-ldap | p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap |
novell | suse_linux | krb5-plugin-kdb-ldap-debuginfo | p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap-debuginfo |
novell | suse_linux | krb5-plugin-preauth-otp | p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp |
novell | suse_linux | krb5-plugin-preauth-otp-debuginfo | p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp-debuginfo |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2695
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2696
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2697
www.nessus.org/u?792e4e19
bugzilla.suse.com/show_bug.cgi?id=948011
bugzilla.suse.com/show_bug.cgi?id=952188
bugzilla.suse.com/show_bug.cgi?id=952189
bugzilla.suse.com/show_bug.cgi?id=952190
www.suse.com/security/cve/CVE-2015-2695/
www.suse.com/security/cve/CVE-2015-2696/
www.suse.com/security/cve/CVE-2015-2697/