Vulnerabilities > CVE-2018-0202 - Out-of-bounds Read vulnerability in multiple products

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL

Summary

clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.

Vulnerable Configurations

Part Description Count
Application
Clamav
159
OS
Canonical
4
OS
Debian
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Overread Buffers
    An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Nessus

  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201804-16.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201804-16 (ClamAV: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in ClamAV. Please review the CVE identifiers referenced below for details. Impact : A remote attacker, through multiple vectors, could execute arbitrary code, cause a Denial of Service condition, or have other unspecified impacts. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id109230
    published2018-04-23
    reporterThis script is Copyright (C) 2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/109230
    titleGLSA-201804-16 : ClamAV: Multiple vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201804-16.
    #
    # The advisory text is Copyright (C) 2001-2018 Gentoo Foundation, Inc.
    # and licensed under the Creative Commons - Attribution / Share Alike 
    # license. See http://creativecommons.org/licenses/by-sa/3.0/
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(109230);
      script_version("1.2");
      script_cvs_date("Date: 2018/06/07 13:15:38");
    
      script_cve_id("CVE-2012-6706", "CVE-2017-11423", "CVE-2017-6418", "CVE-2017-6419", "CVE-2017-6420", "CVE-2018-0202", "CVE-2018-1000085");
      script_xref(name:"GLSA", value:"201804-16");
    
      script_name(english:"GLSA-201804-16 : ClamAV: Multiple vulnerabilities");
      script_summary(english:"Checks for updated package(s) in /var/db/pkg");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Gentoo host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote host is affected by the vulnerability described in GLSA-201804-16
    (ClamAV: Multiple vulnerabilities)
    
        Multiple vulnerabilities have been discovered in ClamAV. Please review
          the CVE identifiers referenced below for details.
      
    Impact :
    
        A remote attacker, through multiple vectors, could execute arbitrary
          code, cause a Denial of Service condition, or have other unspecified
          impacts.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/201804-16"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All ClamAV users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose '>=app-antivirus/clamav-0.99.4'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:clamav");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2018/04/22");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/23");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2018 Tenable Network Security, Inc.");
      script_family(english:"Gentoo Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("qpkg.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
    if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (qpkg_check(package:"app-antivirus/clamav", unaffected:make_list("ge 0.99.4"), vulnerable:make_list("lt 0.99.4"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ClamAV");
    }
    
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-0863-1.NASL
    descriptionThis update for clamav fixes the following issues: Security issues fixed : - CVE-2012-6706: VMSF_DELTA filter inside the unrar implementation allows an arbitrary memory write (bsc#1045315). - CVE-2017-6419: A heap-based buffer overflow that can lead to a denial of service in libmspack via a crafted CHM file (bsc#1052449). - CVE-2017-11423: A stack-based buffer over-read that can lead to a denial of service in mspack via a crafted CAB file (bsc#1049423). - CVE-2018-1000085: An out-of-bounds heap read vulnerability was found in XAR parser that can lead to a denial of service (bsc#1082858). - CVE-2018-0202: Fixed two vulnerabilities in the PDF parsing code (bsc#1083915). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id108829
    published2018-04-04
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108829
    titleSUSE SLES11 Security Update : clamav (SUSE-SU-2018:0863-1)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2018-D2B08AA37F.NASL
    descriptionUpdate to 0.99.4 0.99.4 addresses a few outstanding vulnerability bugs. It includes fixes for : - CVE-2012-6706 - CVE-2017-6419 - CVE-2017-11423 - CVE-2018-1000085 There are also a few bug fixes that were not assigned CVE’s, but were important enough to address while we had the chance. One of these was the notorious file descriptor exhaustion bug that caused outages late last January. In addition to the above, 0.99.4 fixes : - CVE-2018-0202: Two newly reported vulnerabilities in the PDF parsing code. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2018-03-14
    plugin id108311
    published2018-03-14
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108311
    titleFedora 26 : clamav (2018-d2b08aa37f)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3592-1.NASL
    descriptionIt was discovered that ClamAV incorrectly handled parsing certain PDF files. A remote attacker could use this issue to cause ClamAV to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-0202) Hanno Bock discovered that ClamAV incorrectly handled parsing certain XAR files. A remote attacker could use this issue to cause ClamAV to crash, resulting in a denial of service. (CVE-2018-1000085). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id107256
    published2018-03-09
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/107256
    titleUbuntu 14.04 LTS / 16.04 LTS / 17.10 : clamav vulnerabilities (USN-3592-1)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2018-602B5345FA.NASL
    descriptionUpdate to 0.99.4 0.99.4 addresses a few outstanding vulnerability bugs. It includes fixes for : - CVE-2012-6706 - CVE-2017-6419 - CVE-2017-11423 - CVE-2018-1000085 There are also a few bug fixes that were not assigned CVE’s, but were important enough to address while we had the chance. One of these was the notorious file descriptor exhaustion bug that caused outages late last January. In addition to the above, 0.99.4 fixes : - CVE-2018-0202: Two newly reported vulnerabilities in the PDF parsing code. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2018-03-07
    plugin id107169
    published2018-03-07
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/107169
    titleFedora 27 : clamav (2018-602b5345fa)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2018-314.NASL
    descriptionThis update for clamav fixes the following issues : Security issues fixed : - CVE-2012-6706: VMSF_DELTA filter inside the unrar implementation allows an arbitrary memory write (bsc#1045315). - CVE-2017-6419: A heap-based buffer overflow that can lead to a denial of service in libmspack via a crafted CHM file (bsc#1052449). - CVE-2017-11423: A stack-based buffer over-read that can lead to a denial of service in mspack via a crafted CAB file (bsc#1049423). - CVE-2018-1000085: An out-of-bounds heap read vulnerability was found in XAR parser that can lead to a denial of service (bsc#1082858). - CVE-2018-0202: Fixed two vulnerabilities in the PDF parsing code (bsc#1083915). This update was imported from the SUSE:SLE-12:Update update project.
    last seen2020-06-05
    modified2018-03-27
    plugin id108637
    published2018-03-27
    reporterThis script is Copyright (C) 2018-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/108637
    titleopenSUSE Security Update : clamav (openSUSE-2018-314)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1307.NASL
    descriptionSome vulnerabilities have been found in ClamAV, an open source antivirus engine : CVE-2018-0202 It was found that ClamAV didn
    last seen2020-03-17
    modified2018-03-19
    plugin id108415
    published2018-03-19
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108415
    titleDebian DLA-1307-1 : clamav security update
  • NASL familyAmazon Linux Local Security Checks
    NASL idALA_ALAS-2018-976.NASL
    descriptionHeap-based buffer overflow in mspack/lzxd.c mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file. (CVE-2017-6419) Out-of-bounds access in the PDF parser (CVE-2018-0202) A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the
    last seen2020-06-01
    modified2020-06-02
    plugin id108601
    published2018-03-27
    reporterThis script is Copyright (C) 2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/108601
    titleAmazon Linux AMI : clamav (ALAS-2018-976)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-0809-1.NASL
    descriptionThis update for clamav fixes the following issues: Security issues fixed : - CVE-2012-6706: VMSF_DELTA filter inside the unrar implementation allows an arbitrary memory write (bsc#1045315). - CVE-2017-6419: A heap-based buffer overflow that can lead to a denial of service in libmspack via a crafted CHM file (bsc#1052449). - CVE-2017-11423: A stack-based buffer over-read that can lead to a denial of service in mspack via a crafted CAB file (bsc#1049423). - CVE-2018-1000085: An out-of-bounds heap read vulnerability was found in XAR parser that can lead to a denial of service (bsc#1082858). - CVE-2018-0202: Fixed two vulnerabilities in the PDF parsing code (bsc#1083915). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id108652
    published2018-03-27
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/108652
    titleSUSE SLED12 / SLES12 Security Update : clamav (SUSE-SU-2018:0809-1)