Vulnerabilities > CVE-2006-4573 - Denial of Service vulnerability in GNU Screen

047910
CVSS 2.6 - LOW
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
high complexity
gnu
nessus

Summary

Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences.

Nessus

  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_B318DC8C675611DB83C3000C6EC775D9.NASL
    descriptionA vulnerability in the handling of combined UTF-8 characters in screen may allow an user-assisted attacker to crash screen or potentially allow code execution as the user running screen. To exploit this issue the user running scren must in some way interact with the attacker.
    last seen2020-06-01
    modified2020-06-02
    plugin id22925
    published2006-10-30
    reporterThis script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/22925
    titleFreeBSD : screen -- combined UTF-8 characters vulnerability (b318dc8c-6756-11db-83c3-000c6ec775d9)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2018 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(22925);
      script_version("1.14");
      script_cvs_date("Date: 2019/08/02 13:32:38");
    
      script_cve_id("CVE-2006-4573");
      script_bugtraq_id(20727);
    
      script_name(english:"FreeBSD : screen -- combined UTF-8 characters vulnerability (b318dc8c-6756-11db-83c3-000c6ec775d9)");
      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:
    "A vulnerability in the handling of combined UTF-8 characters in screen
    may allow an user-assisted attacker to crash screen or potentially
    allow code execution as the user running screen. To exploit this issue
    the user running scren must in some way interact with the attacker."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://lists.gnu.org/archive/html/screen-users/2006-10/msg00028.html"
      );
      # https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=212056
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=212056"
      );
      # https://vuxml.freebsd.org/freebsd/b318dc8c-6756-11db-83c3-000c6ec775d9.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?32f67a99"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:screen");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2006/10/23");
      script_set_attribute(attribute:"patch_publication_date", value:"2006/10/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/30");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2006-2019 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:"screen<4.0.3")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_note(port:0, extra:pkg_report_get());
      else security_note(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SCREEN-2199.NASL
    descriptionA special formed UTF-8 sequence in text could be used to crash the terminal multitasker screen by overwriting memory in the heap. This is potentially exploitable to execute code. (CVE-2006-4573)
    last seen2020-06-01
    modified2020-06-02
    plugin id29578
    published2007-12-13
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29578
    titleSuSE 10 Security Update : screen (ZYPP Patch Number 2199)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-1202.NASL
    description'cstone
    last seen2020-06-01
    modified2020-06-02
    plugin id22934
    published2006-11-06
    reporterThis script is Copyright (C) 2006-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/22934
    titleDebian DSA-1202-1 : screen - programming error
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SCREEN-2198.NASL
    descriptionA special formed UTF-8 sequence in text could be used to crash the terminal multitasker screen by overwriting memory in the heap. This is potentially exploitable to execute code. (CVE-2006-4573)
    last seen2020-06-01
    modified2020-06-02
    plugin id27433
    published2007-10-17
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/27433
    titleopenSUSE 10 Security Update : screen (screen-2198)
  • NASL familyMandriva Local Security Checks
    NASL idMANDRAKE_MDKSA-2006-191.NASL
    descriptionMultiple unspecified vulnerabilities in the
    last seen2020-06-01
    modified2020-06-02
    plugin id24576
    published2007-02-18
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/24576
    titleMandrake Linux Security Advisory : screen (MDKSA-2006:191)
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-200611-01.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-200611-01 (Screen: UTF-8 character handling vulnerability) cstone and Richard Felker discovered a flaw in Screen
    last seen2020-06-01
    modified2020-06-02
    plugin id22939
    published2006-11-06
    reporterThis script is Copyright (C) 2006-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/22939
    titleGLSA-200611-01 : Screen: UTF-8 character handling vulnerability
  • NASL familySuSE Local Security Checks
    NASL idSUSE9_11260.NASL
    descriptionA special formed UTF-8 sequence in text could be used to crash the terminal multitasker screen by overwriting memory in the heap. This is potentially exploitable to execute code. (CVE-2006-4573)
    last seen2020-06-01
    modified2020-06-02
    plugin id41104
    published2009-09-24
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/41104
    titleSuSE9 Security Update : screen (YOU Patch Number 11260)
  • NASL familySlackware Local Security Checks
    NASL idSLACKWARE_SSA_2006-307-02.NASL
    descriptionNew screen packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1, 10.2, and 11.0 to fix a security issue.
    last seen2020-06-01
    modified2020-06-02
    plugin id24658
    published2007-02-18
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/24658
    titleSlackware 10.0 / 10.1 / 10.2 / 11.0 / 8.1 / 9.0 / 9.1 : screen (SSA:2006-307-02)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-370-1.NASL
    descriptioncstone and Rich Felker discovered a programming error in the UTF8 string handling code of
    last seen2020-06-01
    modified2020-06-02
    plugin id27951
    published2007-11-10
    reporterUbuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/27951
    titleUbuntu 5.04 / 5.10 / 6.06 LTS / 6.10 : screen vulnerability (USN-370-1)
  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_SECUPD2007-005.NASL
    descriptionThe remote host is running a version of Mac OS X 10.4 or 10.3 that does not have Security Update 2007-005 applied. This update fixes security flaws in the following applications : Alias Manager BIND CoreGraphics crontabs fetchmail file iChat mDNSResponder PPP ruby screen texinfo VPN
    last seen2020-06-01
    modified2020-06-02
    plugin id25297
    published2007-05-25
    reporterThis script is Copyright (C) 2007-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/25297
    titleMac OS X Multiple Vulnerabilities (Security Update 2007-005)

Seebug

bulletinFamilyexploit
descriptionApple Mac OS X是一款基于BSD的商业性质的操作系统。 Apple Mac OS X存在多个安全问题,远程攻击者可以利用漏洞进行拒绝服务,执行任意代码,提升特权等攻击。 CVE-ID: CVE-2007-0740 Alias Manager在部分条件可以使用户打开恶意文件,导致特权提升。 CVE-ID: CVE-2007-0493, CVE-2007-0494, CVE-2006-4095, CVE-2006-4096: BIND服务程序存在多个安全问题,可导致拒绝服务攻击。 CVE-ID: CVE-2007-0750 CoreGraphics在打开特殊构建的PDF文件时可触发溢出,导致任意代码执行。 CVE-ID: CVE-2007-0751 当每日清楚脚本执行时,/tmp目录中的挂接的文件系统可被删除。 CVE-ID: CVE-2007-1558 fetchmail加密存在安全问题,可导致泄露密码信息。 CVE-ID: CVE-2007-1536 运行file命令打开特殊构建的文件可导致任意代码执行或拒绝服务攻击。 CVE-ID: CVE-2007-2390 iChat用于在家用NAT网关上建立端口映射的UPnP IGD代码存在缓冲区溢出,构建恶意报文可导致任意代码执行。 CVE-ID: CVE-2007-0752 PPP守护进程在通过命令行装载插件时可导致特权提升。 CVE-ID: CVE-2006-5467, CVE-2006-6303 Ruby CGI库存在多个拒绝服务攻击。 CVE-ID: CVE-2006-4573 GNU Screen存在多个拒绝服务问题。 CVE-ID: CVE-2005-3011 texinfo存在漏洞允许任意文件被覆盖。 CVE-ID: CVE-2007-0753 vpnd存在格式串问题,可用于提升特权。 Cosmicperl Directory Pro 10.0.3 Apple Mac OS X Server 10.4.9 Apple Mac OS X Server 10.4.8 Apple Mac OS X Server 10.4.7 Apple Mac OS X Server 10.4.6 Apple Mac OS X Server 10.4.5 Apple Mac OS X Server 10.4.4 Apple Mac OS X Server 10.4.3 Apple Mac OS X Server 10.4.2 Apple Mac OS X Server 10.4.1 Apple Mac OS X Server 10.4 Apple Mac OS X Server 10.3.9 Apple Mac OS X Server 10.3.8 Apple Mac OS X Server 10.3.7 Apple Mac OS X Server 10.3.6 Apple Mac OS X Server 10.3.5 Apple Mac OS X Server 10.3.4 Apple Mac OS X Server 10.3.3 Apple Mac OS X Server 10.3.2 Apple Mac OS X Server 10.3.1 Apple Mac OS X Server 10.3 Apple Mac OS X Server 10.2.8 Apple Mac OS X Server 10.2.7 Apple Mac OS X Server 10.2.6 Apple Mac OS X Server 10.2.5 Apple Mac OS X Server 10.2.4 Apple Mac OS X Server 10.2.3 Apple Mac OS X Server 10.2.2 Apple Mac OS X Server 10.2.1 Apple Mac OS X Server 10.2 Apple Mac OS X Server 10.1.5 Apple Mac OS X Server 10.1.4 Apple Mac OS X Server 10.1.3 Apple Mac OS X Server 10.1.2 Apple Mac OS X Server 10.1.1 Apple Mac OS X Server 10.1 Apple Mac OS X Server 10.0 Apple Mac OS X Preview.app 3.0.8 Apple Mac OS X 10.4.9 Apple Mac OS X 10.4.8 Apple Mac OS X 10.4.7 Apple Mac OS X 10.4.6 Apple Mac OS X 10.4.5 Apple Mac OS X 10.4.4 Apple Mac OS X 10.4.3 Apple Mac OS X 10.4.2 Apple Mac OS X 10.4.1 Apple Mac OS X 10.4 Apple Mac OS X 10.3.9 Apple Mac OS X 10.3.8 Apple Mac OS X 10.3.7 Apple Mac OS X 10.3.6 Apple Mac OS X 10.3.5 Apple Mac OS X 10.3.4 Apple Mac OS X 10.3.3 Apple Mac OS X 10.3.2 Apple Mac OS X 10.3.1 Apple Mac OS X 10.3 Apple Mac OS X 10.2.8 Apple Mac OS X 10.2.7 Apple Mac OS X 10.2.6 Apple Mac OS X 10.2.5 Apple Mac OS X 10.2.4 Apple Mac OS X 10.2.3 Apple Mac OS X 10.2.2 Apple Mac OS X 10.2.1 Apple Mac OS X 10.2 Apple Mac OS X 10.1.5 Apple Mac OS X 10.1.4 Apple Mac OS X 10.1.3 Apple Mac OS X 10.1.2 Apple Mac OS X 10.1.1 Apple Mac OS X 10.1 Apple Mac OS X 10.1 Apple Mac OS X 10.0.4 Apple Mac OS X 10.0.3 Apple Mac OS X 10.0.2 Apple Mac OS X 10.0.1 Apple Mac OS X 10.0 3 Apple Mac OS X 10.0 升级程序: Apple Mac OS X Server 10.3.9 * Apple SecUpdSrvr2007-005Pan.dmg <a href="http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13993&amp;cat=" target="_blank">http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13993&amp;cat=</a> 1&amp;platform=osx&amp;method=sa/SecUpdSrvr2007-005Pan.dmg Apple Mac OS X 10.3.9 * Apple SecUpd2007-005Pan.dmg <a href="http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13992&amp;cat=" target="_blank">http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13992&amp;cat=</a> 1&amp;platform=osx&amp;method=sa/SecUpd2007-005Pan.dmg Apple Mac OS X Server 10.4.9 * Apple SecUpd2007-005Ti.dmg <a href="http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13995&amp;cat=" target="_blank">http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13995&amp;cat=</a> 1&amp;platform=osx&amp;method=sa/SecUpd2007-005Ti.dmg * Apple SecUpd2007-005Univ.dmg <a href="http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13998&amp;cat=" target="_blank">http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13998&amp;cat=</a> 1&amp;platform=osx&amp;method=sa/SecUpd2007-005Univ.dmg Apple Mac OS X 10.4.9 * Apple SecUpd2007-005Ti.dmg <a href="http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13995&amp;cat=" target="_blank">http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13995&amp;cat=</a> 1&amp;platform=osx&amp;method=sa/SecUpd2007-005Ti.dmg * Apple SecUpd2007-005Univ.dmg <a href="http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13998&amp;cat=" target="_blank">http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=13998&amp;cat=</a> 1&amp;platform=osx&amp;method=sa/SecUpd2007-005Univ.dmg
idSSV:1795
last seen2017-11-19
modified2007-05-25
published2007-05-25
reporterRoot
titleApple Mac OS X 2007-005多个安全漏洞