Mageia: Security Advisory (MGASA-2018-0155)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.10.2018.0155");
  script_cve_id("CVE-2018-5710", "CVE-2018-5729", "CVE-2018-5730");
  script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/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:"2018-03-29 15:52:53 +0000 (Thu, 29 Mar 2018)");

  script_name("Mageia: Security Advisory (MGASA-2018-0155)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA6");

  script_xref(name:"Advisory-ID", value:"MGASA-2018-0155");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2018-0155.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=22647");
  script_xref(name:"URL", value:"https://lists.fedoraproject.org/archives/list/[email protected]/thread/GK5T6JPMBHBPKS7HNGHYUUF4KKRMNSNU/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5' package(s) announced via the MGASA-2018-0155 advisory.");

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

  script_tag(name:"insight", value:"Updated krb5 packages fix security vulnerabilities:

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The
pre-defined function 'strlen' is getting a 'NULL' string as a parameter value
in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution
Center (KDC), which allows remote authenticated users to cause a denial of
service (NULL pointer dereference) via a modified kadmin client
(CVE-2018-5710, CVE-2018-5729, CVE-2018-5730).");

  script_tag(name:"affected", value:"'krb5' package(s) on Mageia 6.");

  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 == "MAGEIA6") {

  if(!isnull(res = isrpmvuln(pkg:"krb5", rpm:"krb5~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-pkinit-openssl", rpm:"krb5-pkinit-openssl~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server-ldap", rpm:"krb5-server-ldap~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64krb53", rpm:"lib64krb53~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64krb53-devel", rpm:"lib64krb53-devel~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libkrb53", rpm:"libkrb53~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libkrb53-devel", rpm:"libkrb53-devel~1.15.1~2.3.mga6", rls:"MAGEIA6"))) {
    report += res;
  }

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

exit(0);