SUSE: Security Advisory (SUSE-SU-2017:2659-1)

# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.1.4.2017.2659.1");
  script_cve_id("CVE-2017-11462");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2025-08-15T15:42:25+0000");
  script_tag(name:"last_modification", value:"2025-08-15 15:42:25 +0000 (Fri, 15 Aug 2025)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-09-26 16:20:25 +0000 (Tue, 26 Sep 2017)");

  script_name("SUSE: Security Advisory (SUSE-SU-2017:2659-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES12\.0SP2|SLES12\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2017:2659-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2017/suse-su-20172659-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1032680");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1054028");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1056995");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/903543");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2017-October/003277.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5' package(s) announced via the SUSE-SU-2017:2659-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This update for krb5 fixes several issues.

This security issue was fixed:

- CVE-2017-11462: Prevent automatic security context deletion to prevent
 double-free (bsc#1056995)

These non-security issues were fixed:

- Set 'rdns' and 'dns_canonicalize_hostname' to false in krb5.conf
 in order to improve client security in handling service principle
 names. (bsc#1054028)
- Prevent kadmind.service startup failure caused by absence of
 LDAP service. (bsc#903543)
- Remove main package's dependency on systemd (bsc#1032680)");

  script_tag(name:"affected", value:"'krb5' package(s) on SUSE Linux Enterprise Desktop 12-SP2, SUSE Linux Enterprise Desktop 12-SP3, SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server 12-SP3, SUSE Linux Enterprise Server for Raspberry Pi 12-SP2, SUSE Linux Enterprise Server for SAP Applications 12-SP2, SUSE Linux Enterprise Server for SAP Applications 12-SP3.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "SLES12.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"krb5", rpm:"krb5~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-32bit", rpm:"krb5-32bit~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client", rpm:"krb5-client~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-doc", rpm:"krb5-doc~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-kdb-ldap", rpm:"krb5-plugin-kdb-ldap~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-otp", rpm:"krb5-plugin-preauth-otp~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-pkinit", rpm:"krb5-plugin-preauth-pkinit~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.12.5~40.13.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "SLES12.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"krb5", rpm:"krb5~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-32bit", rpm:"krb5-32bit~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client", rpm:"krb5-client~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-doc", rpm:"krb5-doc~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-kdb-ldap", rpm:"krb5-plugin-kdb-ldap~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-otp", rpm:"krb5-plugin-preauth-otp~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-pkinit", rpm:"krb5-plugin-preauth-pkinit~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.12.5~40.13.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);