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openvasCopyright (C) 2021 Greenbone AGOPENVAS:13614125623114201900601
HistoryApr 19, 2021 - 12:00 a.m.

SUSE: Security Advisory (SUSE-SU-2019:0060-1)

2021-04-1900:00:00
Copyright (C) 2021 Greenbone AG
plugins.openvas.org
8
suse-su-2019:0060-1
libvncserver
security advisory
suse enterprise storage 4
suse linux enterprise server 12
suse linux enterprise server for sap 12-sp2
suse linux enterprise software development kit 12-sp3
suse openstack cloud 7
use-after-free
file transfer extension
heap out-of-bound write
information disclosure
improper initialization
null pointer dereference
infinite loop

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.7

Confidence

High

EPSS

0.724

Percentile

98.1%

The remote host is missing an update for the

# 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("1.3.6.1.4.1.25623.1.1.4.2019.0060.1");
  script_cve_id("CVE-2018-15126", "CVE-2018-15127", "CVE-2018-20019", "CVE-2018-20020", "CVE-2018-20021", "CVE-2018-20022", "CVE-2018-20023", "CVE-2018-20024", "CVE-2018-6307");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 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:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:"2019-01-07 21:11:03 +0000 (Mon, 07 Jan 2019)");

  script_name("SUSE: Security Advisory (SUSE-SU-2019:0060-1)");
  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|SLES12\.0SP1|SLES12\.0SP2|SLES12\.0SP3|SLES12\.0SP4)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2019:0060-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2019/suse-su-20190060-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'LibVNCServer' package(s) announced via the SUSE-SU-2019:0060-1 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 LibVNCServer fixes the following issues:

Security issues fixed:
CVE-2018-15126: Fixed use-after-free in file transfer extension
 (bsc#1120114)

CVE-2018-6307: Fixed use-after-free in file transfer extension server
 code (bsc#1120115)

CVE-2018-20020: Fixed heap out-of-bound write inside structure in VNC
 client code (bsc#1120116)

CVE-2018-15127: Fixed heap out-of-bounds write in rfbserver.c
 (bsc#1120117)

CVE-2018-20019: Fixed multiple heap out-of-bound writes in VNC client
 code (bsc#1120118)

CVE-2018-20023: Fixed information disclosure through improper
 initialization in VNC Repeater client code (bsc#1120119)

CVE-2018-20022: Fixed information disclosure through improper
 initialization in VNC client code (bsc#1120120)

CVE-2018-20024: Fixed NULL pointer dereference in VNC client code
 (bsc#1120121)

CVE-2018-20021: Fixed infinite loop in VNC client code (bsc#1120122)");

  script_tag(name:"affected", value:"'LibVNCServer' package(s) on SUSE Enterprise Storage 4, SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 12-SP1, SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server 12-SP3, SUSE Linux Enterprise Server 12-SP4, SUSE Linux Enterprise Server for SAP 12-SP2, SUSE Linux Enterprise Software Development Kit 12-SP3, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE OpenStack Cloud 7.");

  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:"LibVNCServer-debugsource", rpm:"LibVNCServer-debugsource~0.9.9~17.8.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0", rpm:"libvncclient0~0.9.9~17.8.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0-debuginfo", rpm:"libvncclient0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0", rpm:"libvncserver0~0.9.9~17.8.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0-debuginfo", rpm:"libvncserver0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0"))) {
    report += res;
  }

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

if(release == "SLES12.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"LibVNCServer-debugsource", rpm:"LibVNCServer-debugsource~0.9.9~17.8.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0", rpm:"libvncclient0~0.9.9~17.8.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0-debuginfo", rpm:"libvncclient0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0", rpm:"libvncserver0~0.9.9~17.8.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0-debuginfo", rpm:"libvncserver0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

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

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

  if(!isnull(res = isrpmvuln(pkg:"LibVNCServer-debugsource", rpm:"LibVNCServer-debugsource~0.9.9~17.8.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0", rpm:"libvncclient0~0.9.9~17.8.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0-debuginfo", rpm:"libvncclient0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0", rpm:"libvncserver0~0.9.9~17.8.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0-debuginfo", rpm:"libvncserver0-debuginfo~0.9.9~17.8.1", 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:"LibVNCServer-debugsource", rpm:"LibVNCServer-debugsource~0.9.9~17.8.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0", rpm:"libvncclient0~0.9.9~17.8.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0-debuginfo", rpm:"libvncclient0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0", rpm:"libvncserver0~0.9.9~17.8.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0-debuginfo", rpm:"libvncserver0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

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

if(release == "SLES12.0SP4") {

  if(!isnull(res = isrpmvuln(pkg:"LibVNCServer-debugsource", rpm:"LibVNCServer-debugsource~0.9.9~17.8.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0", rpm:"libvncclient0~0.9.9~17.8.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncclient0-debuginfo", rpm:"libvncclient0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0", rpm:"libvncserver0~0.9.9~17.8.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libvncserver0-debuginfo", rpm:"libvncserver0-debuginfo~0.9.9~17.8.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

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

exit(0);

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.7

Confidence

High

EPSS

0.724

Percentile

98.1%