SUSE: Security Advisory (SUSE-SU-2015:1897-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2015.1897.1");
  script_cve_id("CVE-2015-2695", "CVE-2015-2696", "CVE-2015-2697");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2025-08-15T15:42:24+0000");
  script_tag(name:"last_modification", value:"2025-08-15 15:42:24 +0000 (Fri, 15 Aug 2025)");
  script_tag(name:"cvss_base", value:"7.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");

  script_name("SUSE: Security Advisory (SUSE-SU-2015:1897-1)");
  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\.0)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2015:1897-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2015/suse-su-20151897-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/948011");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/952188");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/952189");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/952190");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2015-November/001666.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5' package(s) announced via the SUSE-SU-2015:1897-1 advisory.");

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

  script_tag(name:"insight", 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).");

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

  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 == "SLES12.0") {

  if(!isnull(res = isrpmvuln(pkg:"krb5", rpm:"krb5~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-32bit", rpm:"krb5-32bit~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client", rpm:"krb5-client~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-doc", rpm:"krb5-doc~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-kdb-ldap", rpm:"krb5-plugin-kdb-ldap~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-otp", rpm:"krb5-plugin-preauth-otp~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-pkinit", rpm:"krb5-plugin-preauth-pkinit~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.12.1~19.1", rls:"SLES12.0"))) {
    report += res;
  }

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

exit(0);