SUSE: Security Advisory (SUSE-SU-2016:1205-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2016.1205.1");
  script_cve_id("CVE-2016-3627");
  script_tag(name:"creation_date", value:"2021-06-09 14:58:07 +0000 (Wed, 09 Jun 2021)");
  script_version("2024-02-12T05:05:32+0000");
  script_tag(name:"last_modification", value:"2024-02-12 05:05:32 +0000 (Mon, 12 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-02-10 02:43:04 +0000 (Sat, 10 Feb 2024)");

  script_name("SUSE: Security Advisory (SUSE-SU-2016:1205-1)");
  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=(SLES11\.0SP4)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2016:1205-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2016/suse-su-20161205-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'libxml2' package(s) announced via the SUSE-SU-2016:1205-1 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 libxml2 fixes two security issues:
- libxml2 limits the number of recursions an XML document can contain so
 to protect against the 'Billion Laughs' denial-of-service attack.
 Unfortunately, the underlying counter was not incremented properly in
 all necessary locations. Therefore, specially crafted XML documents
 could exhaust all available stack space and crash the XML parser without
 running into the recursion limit. This vulnerability has been fixed.
 (bsc#975947)
- When running in recovery mode, certain invalid XML documents would
 trigger an infinite recursion in libxml2 that ran until all stack space
 was exhausted. This vulnerability could have been used to facilitate a
 denial-of-sevice attack. (CVE-2016-3627, bsc#972335)");

  script_tag(name:"affected", value:"'libxml2' package(s) on SUSE Linux Enterprise Debuginfo 11-SP4, SUSE Linux Enterprise Server 11-SP4, SUSE Linux Enterprise Software Development Kit 11-SP4.");

  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 == "SLES11.0SP4") {

  if(!isnull(res = isrpmvuln(pkg:"libxml2", rpm:"libxml2~2.7.6~0.40.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libxml2-32bit", rpm:"libxml2-32bit~2.7.6~0.40.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libxml2-doc", rpm:"libxml2-doc~2.7.6~0.40.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libxml2-python", rpm:"libxml2-python~2.7.6~0.40.3", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libxml2-x86", rpm:"libxml2-x86~2.7.6~0.40.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

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

exit(0);