Vulnerabilities > CVE-2015-8614 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products

047910
CVSS 7.3 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
LOW
Integrity impact
LOW
Availability impact
LOW
network
low complexity
claws-mail
opensuse
CWE-119
nessus

Summary

Multiple stack-based buffer overflows in the (1) conv_jistoeuc, (2) conv_euctojis, and (3) conv_sjistoeuc functions in codeconv.c in Claws Mail before 3.13.1 allow remote attackers to have unspecified impact via a crafted email, involving Japanese character set conversion.

Vulnerable Configurations

Part Description Count
Application
Claws-Mail
58
OS
Opensuse
3

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_51358314BEC811E582CDBCAEC524BF84.NASL
    descriptionDrWhax reports : So in codeconv.c there is a function for Japanese character set conversion called conv_jistoeuc(). There is no bounds checking on the output buffer, which is created on the stack with alloca() Bug can be triggered by sending an email to [email protected] or whatever. Since my C is completely rusty, you might be able to make a better judgment on the severity of this issue. Marking critical for now.
    last seen2020-06-01
    modified2020-06-02
    plugin id87997
    published2016-01-20
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87997
    titleFreeBSD : claws-mail -- no bounds checking on the output buffer in conv_jistoeuc, conv_euctojis, conv_sjistoeuc (51358314-bec8-11e5-82cd-bcaec524bf84)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2019 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(87997);
      script_version("2.6");
      script_cvs_date("Date: 2019/07/10 16:04:13");
    
      script_cve_id("CVE-2015-8614");
    
      script_name(english:"FreeBSD : claws-mail -- no bounds checking on the output buffer in conv_jistoeuc, conv_euctojis, conv_sjistoeuc (51358314-bec8-11e5-82cd-bcaec524bf84)");
      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:
    "DrWhax reports :
    
    So in codeconv.c there is a function for Japanese character set
    conversion called conv_jistoeuc(). There is no bounds checking on the
    output buffer, which is created on the stack with alloca() Bug can be
    triggered by sending an email to [email protected] or whatever.
    
    Since my C is completely rusty, you might be able to make a better
    judgment on the severity of this issue. Marking critical for now."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2015-8614"
      );
      # https://vuxml.freebsd.org/freebsd/51358314-bec8-11e5-82cd-bcaec524bf84.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?8162c669"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:claws-mail");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/04");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/01/19");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/20");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2016-2019 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:"claws-mail<3.13.2")) 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 familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201606-11.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201606-11 (claws-mail: Multiple Vulnerabilities) Multiple vulnerabilities have been discovered in claws-mail. Please review the CVE identifiers referenced below for details. Impact : An attacker could possibly intercept communications due to the default implementation of SSL 3.0. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id91842
    published2016-06-27
    reporterThis script is Copyright (C) 2016 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/91842
    titleGLSA-201606-11 : claws-mail: Multiple Vulnerabilities (POODLE)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201606-11.
    #
    # The advisory text is Copyright (C) 2001-2016 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(91842);
      script_version("$Revision: 2.2 $");
      script_cvs_date("$Date: 2016/10/10 14:25:16 $");
    
      script_cve_id("CVE-2014-3566", "CVE-2015-8614", "CVE-2015-8708");
      script_xref(name:"GLSA", value:"201606-11");
    
      script_name(english:"GLSA-201606-11 : claws-mail: Multiple Vulnerabilities (POODLE)");
      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-201606-11
    (claws-mail: Multiple Vulnerabilities)
    
        Multiple vulnerabilities have been discovered in claws-mail. Please
          review the CVE identifiers referenced below for details.
      
    Impact :
    
        An attacker could possibly intercept communications due to the default
          implementation of SSL 3.0.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/201606-11"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All claws-mail users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose '>=mail-client/claws-mail-3.13.2'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:claws-mail");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2016/06/26");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/27");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2016 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:"mail-client/claws-mail", unaffected:make_list("ge 3.13.2"), vulnerable:make_list("lt 3.13.2"))) 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, "claws-mail");
    }
    
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-219.NASL
    descriptionThis update for claws-mail fixes the following issues : - CVE-2015-8614: additional fixes for buffer overrun issues which allowed remote attackers to cause a crash or have unspecified further impact (boo#959993)
    last seen2020-06-05
    modified2016-02-18
    plugin id88825
    published2016-02-18
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/88825
    titleopenSUSE Security Update : claws-mail (openSUSE-2016-219)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3452.NASL
    description'DrWhax
    last seen2020-06-01
    modified2020-06-02
    plugin id88110
    published2016-01-25
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88110
    titleDebian DSA-3452-1 : claws-mail - security update
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-1.NASL
    descriptionThis update for claws-mail fixes the following security issue : - CVE-2015-8614: buffer overrun issues in Japanese character set conversion code could allow an adversary to remotely crash claws and potentially have further unspecified impact (boo#959993)
    last seen2020-06-05
    modified2016-01-04
    plugin id87718
    published2016-01-04
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/87718
    titleopenSUSE Security Update : claws-mail (openSUSE-2016-1)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-214.NASL
    descriptionThis update for claws-mail fixes the following issues : - CVE-2015-8614: additional fixes for buffer overrun issues which allowed remote attackers to cause a crash or have unspecified further impact (boo#959993)
    last seen2020-06-05
    modified2016-02-17
    plugin id88774
    published2016-02-17
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/88774
    titleopenSUSE Security Update : claws-mail (openSUSE-2016-214)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2015-3A073171C3.NASL
    descriptionUpdate from 3.12.0 to 3.13.1 for bug-fixes. Includes security fix for CVE-2015-8614. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-03-04
    plugin id89215
    published2016-03-04
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/89215
    titleFedora 22 : claws-mail-3.13.1-4.fc22 (2015-3a073171c3)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-383.NASL
    description'DrWhax
    last seen2020-03-17
    modified2016-01-13
    plugin id87884
    published2016-01-13
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87884
    titleDebian DLA-383-1 : claws-mail security update
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2015-AA14BE8D92.NASL
    descriptionUpdate from 3.12.0 to 3.13.1 for bug-fixes. Includes security fix for CVE-2015-8614. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-03-04
    plugin id89360
    published2016-03-04
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/89360
    titleFedora 23 : claws-mail-3.13.1-4.fc23 (2015-aa14be8d92)