Vulnerabilities > CVE-2020-12865 - Out-of-bounds Write vulnerability in multiple products

047910
CVSS 8.0 - HIGH
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH

Summary

A heap buffer overflow in SANE Backends before 1.0.30 may allow a malicious device connected to the same local network as the victim to execute arbitrary code, aka GHSL-2020-084.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_284813497E204F80AE1EE6BF48D4F17C.NASL
    descriptionThe Sane Project reports : epson2: fixes CVE-2020-12867 (GHSL-2020-075) and several memory management issues found while addressing that CVE epsonds: addresses out-of-bound memory access issues to fix CVE-2020-12862 (GHSL-2020-082) and CVE-2020-12863 (GHSL-2020-083), addresses a buffer overflow fixing CVE-2020-12865 (GHSL-2020-084) and disables network autodiscovery to mitigate CVE-2020-12866 (GHSL-2020-079), CVE-2020-12861 (GHSL-2020-080) and CVE-2020-12864 (GHSL-2020-081). Note that this backend does not support network scanners to begin with. magicolor: fixes a floating point exception and uninitialized data read fixes an overflow in sanei_tcp_read()
    last seen2020-06-06
    modified2020-05-29
    plugin id136955
    published2020-05-29
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136955
    titleFreeBSD : Sane -- Multiple Vulnerabilities (28481349-7e20-4f80-ae1e-e6bf48d4f17c)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2020 Jacques Vidrine and contributors
    #
    # Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
    # HTML, PDF, PostScript, RTF and so forth) with or without modification,
    # are permitted provided that the following conditions are met:
    # 1. Redistributions of source code (VuXML) must retain the above
    #    copyright notice, this list of conditions and the following
    #    disclaimer as the first lines of this file unmodified.
    # 2. Redistributions in compiled form (transformed to other DTDs,
    #    published online in any format, converted to PDF, PostScript,
    #    RTF and other formats) must reproduce the above copyright
    #    notice, this list of conditions and the following disclaimer
    #    in the documentation and/or other materials provided with the
    #    distribution.
    # 
    # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
    # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
    # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
    # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
    # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
    # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
    # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
    # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(136955);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-12861", "CVE-2020-12862", "CVE-2020-12863", "CVE-2020-12864", "CVE-2020-12865", "CVE-2020-12866", "CVE-2020-12867");
    
      script_name(english:"FreeBSD : Sane -- Multiple Vulnerabilities (28481349-7e20-4f80-ae1e-e6bf48d4f17c)");
      script_summary(english:"Checks for updated package in pkg_info output");
    
      script_set_attribute(
        attribute:"synopsis",
        value:"The remote FreeBSD host is missing a security-related update."
      );
      script_set_attribute(
        attribute:"description",
        value:
    "The Sane Project reports :
    
    epson2: fixes CVE-2020-12867 (GHSL-2020-075) and several memory
    management issues found while addressing that CVE
    
    epsonds: addresses out-of-bound memory access issues to fix
    CVE-2020-12862 (GHSL-2020-082) and CVE-2020-12863 (GHSL-2020-083),
    addresses a buffer overflow fixing CVE-2020-12865 (GHSL-2020-084) and
    disables network autodiscovery to mitigate CVE-2020-12866
    (GHSL-2020-079), CVE-2020-12861 (GHSL-2020-080) and CVE-2020-12864
    (GHSL-2020-081). Note that this backend does not support network
    scanners to begin with.
    
    magicolor: fixes a floating point exception and uninitialized data
    read
    
    fixes an overflow in sanei_tcp_read()"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://gitlab.com/sane-project/backends/-/releases/1.0.30"
      );
      # https://vuxml.freebsd.org/freebsd/28481349-7e20-4f80-ae1e-e6bf48d4f17c.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?1e0f7390"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected package.");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-12861");
      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:freebsd:freebsd:sane-backends");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/17");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/05/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/29");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"FreeBSD Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("freebsd_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
    if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (pkg_test(save_report:TRUE, pkg:"sane-backends<1.0.30")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familySlackware Local Security Checks
    NASL idSLACKWARE_SSA_2020-139-01.NASL
    descriptionNew sane packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues.
    last seen2020-06-06
    modified2020-05-19
    plugin id136707
    published2020-05-19
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136707
    titleSlackware 14.0 / 14.1 / 14.2 / current : sane (SSA:2020-139-01)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Slackware Security Advisory 2020-139-01. The text 
    # itself is copyright (C) Slackware Linux, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(136707);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-12861", "CVE-2020-12862", "CVE-2020-12863", "CVE-2020-12864", "CVE-2020-12865", "CVE-2020-12866", "CVE-2020-12867");
      script_xref(name:"SSA", value:"2020-139-01");
    
      script_name(english:"Slackware 14.0 / 14.1 / 14.2 / current : sane (SSA:2020-139-01)");
      script_summary(english:"Checks for updated package in /var/log/packages");
    
      script_set_attribute(
        attribute:"synopsis",
        value:"The remote Slackware host is missing a security update."
      );
      script_set_attribute(
        attribute:"description",
        value:
    "New sane packages are available for Slackware 14.0, 14.1, 14.2, and
    -current to fix security issues."
      );
      # http://www.slackware.com/security/viewer.php?l=slackware-security&y=2020&m=slackware-security.442630
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?22c1c8a9"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected sane package.");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-12861");
      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:slackware:slackware_linux:sane");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.0");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.1");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.2");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/01");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/05/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/19");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Slackware Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Slackware/release", "Host/Slackware/packages");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("slackware.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Slackware/release")) audit(AUDIT_OS_NOT, "Slackware");
    if (!get_kb_item("Host/Slackware/packages")) 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, "Slackware", cpu);
    
    
    flag = 0;
    if (slackware_check(osver:"14.0", pkgname:"sane", pkgver:"1.0.30", pkgarch:"i486", pkgnum:"1_slack14.0")) flag++;
    if (slackware_check(osver:"14.0", arch:"x86_64", pkgname:"sane", pkgver:"1.0.30", pkgarch:"x86_64", pkgnum:"1_slack14.0")) flag++;
    
    if (slackware_check(osver:"14.1", pkgname:"sane", pkgver:"1.0.30", pkgarch:"i486", pkgnum:"1_slack14.1")) flag++;
    if (slackware_check(osver:"14.1", arch:"x86_64", pkgname:"sane", pkgver:"1.0.30", pkgarch:"x86_64", pkgnum:"1_slack14.1")) flag++;
    
    if (slackware_check(osver:"14.2", pkgname:"sane", pkgver:"1.0.30", pkgarch:"i586", pkgnum:"1_slack14.2")) flag++;
    if (slackware_check(osver:"14.2", arch:"x86_64", pkgname:"sane", pkgver:"1.0.30", pkgarch:"x86_64", pkgnum:"1_slack14.2")) flag++;
    
    if (slackware_check(osver:"current", pkgname:"sane", pkgver:"1.0.30", pkgarch:"i586", pkgnum:"1")) flag++;
    if (slackware_check(osver:"current", arch:"x86_64", pkgname:"sane", pkgver:"1.0.30", pkgarch:"x86_64", pkgnum:"1")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:slackware_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");