SUSE: Security Advisory (SUSE-SU-2018:2683-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2018.2683.1");
  script_cve_id("CVE-2018-0732", "CVE-2018-0737", "CVE-2018-0739");
  script_tag(name:"creation_date", value:"2021-06-09 14:57:37 +0000 (Wed, 09 Jun 2021)");
  script_version("2024-02-02T14:37:50+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:50 +0000 (Fri, 02 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:"2018-08-10 16:42:33 +0000 (Fri, 10 Aug 2018)");

  script_name("SUSE: Security Advisory (SUSE-SU-2018:2683-1)");
  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-2018:2683-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2018/suse-su-20182683-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'compat-openssl098' package(s) announced via the SUSE-SU-2018:2683-1 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 compat-openssl098 fixes the following security issues:
CVE-2018-0732: During key agreement in a TLS handshake using a DH(E)
 based ciphersuite a malicious server could have sent a very large prime
 value to the client. This caused the client to spend an unreasonably
 long period of time generating a key for this prime resulting in a hang
 until the client has finished. This could be exploited in a Denial Of
 Service attack (bsc#1097158)

Blinding enhancements for ECDSA and DSA (bsc#1097624, bsc#1098592)

CVE-2018-0737: The RSA Key generation algorithm has been shown to be
 vulnerable to a cache timing side channel attack. An attacker with
 sufficient access to mount cache timing attacks during the RSA key
 generation process could have recovered the private key (bsc#1089039)

CVE-2018-0739: Constructed ASN.1 types with a recursive definition (such
 as can be found in PKCS7) could eventually exceed the stack given
 malicious input with excessive recursion. This could have resulted in
 DoS (bsc#1087102).");

  script_tag(name:"affected", value:"'compat-openssl098' package(s) on SUSE Linux Enterprise Desktop 12-SP3, SUSE Linux Enterprise Module for Legacy Software 12, SUSE Linux Enterprise Server for SAP 12-SP1, SUSE Linux Enterprise Server for SAP 12-SP2, SUSE Linux Enterprise Server for SAP 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 == "SLES12.0") {

  if(!isnull(res = isrpmvuln(pkg:"compat-openssl098-debugsource", rpm:"compat-openssl098-debugsource~0.9.8j~106.6.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libopenssl0_9_8", rpm:"libopenssl0_9_8~0.9.8j~106.6.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libopenssl0_9_8-32bit", rpm:"libopenssl0_9_8-32bit~0.9.8j~106.6.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libopenssl0_9_8-debuginfo", rpm:"libopenssl0_9_8-debuginfo~0.9.8j~106.6.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libopenssl0_9_8-debuginfo-32bit", rpm:"libopenssl0_9_8-debuginfo-32bit~0.9.8j~106.6.1", rls:"SLES12.0"))) {
    report += res;
  }

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

exit(0);