Vulnerabilities > CVE-2018-20455 - Out-of-bounds Write vulnerability in Radare Radare2

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
radare
CWE-787
nessus

Summary

In radare2 prior to 3.1.1, the parseOperand function inside libr/asm/p/asm_x86_nz.c may allow attackers to cause a denial of service (application crash via a stack-based buffer overflow) by crafting an input file, a related issue to CVE-2018-20456.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-5750AD7485.NASL
    descriptionSecurity fix for CVE-2018-20455 CVE-2018-20456 CVE-2018-20457 CVE-2018-20458 CVE-2018-20459 CVE-2018-20460 CVE-2018-20461 through rebase to 3.2.0 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 seen2020-03-17
    modified2019-01-22
    plugin id121260
    published2019-01-22
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121260
    titleFedora 29 : radare2 (2019-5750ad7485)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory FEDORA-2019-5750ad7485.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(121260);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/24");
    
      script_cve_id("CVE-2018-20455", "CVE-2018-20456", "CVE-2018-20457", "CVE-2018-20458", "CVE-2018-20459", "CVE-2018-20460", "CVE-2018-20461");
      script_xref(name:"FEDORA", value:"2019-5750ad7485");
    
      script_name(english:"Fedora 29 : radare2 (2019-5750ad7485)");
      script_summary(english:"Checks rpm output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Fedora host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Security fix for CVE-2018-20455 CVE-2018-20456 CVE-2018-20457
    CVE-2018-20458 CVE-2018-20459 CVE-2018-20460 CVE-2018-20461 through
    rebase to 3.2.0
    
    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."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bodhi.fedoraproject.org/updates/FEDORA-2019-5750ad7485"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected radare2 package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:radare2");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:29");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/25");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/01/19");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/22");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Fedora Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
    os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! preg(pattern:"^29([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 29", "Fedora " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
    
    
    flag = 0;
    if (rpm_check(release:"FC29", reference:"radare2-3.2.0-1.fc29")) flag++;
    
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_WARNING,
        extra      : rpm_report_get()
      );
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "radare2");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-D4D8AF2C22.NASL
    descriptionSecurity fix for CVE-2018-20455 CVE-2018-20456 CVE-2018-20457 CVE-2018-20458 CVE-2018-20459 CVE-2018-20460 CVE-2018-20461 through rebase to 3.2.0 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 seen2020-03-18
    modified2019-01-22
    plugin id121269
    published2019-01-22
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121269
    titleFedora 28 : radare2 (2019-d4d8af2c22)