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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2002.298 -- FreeBSD Security Notice FreeBSD-SN-02:04 Security issues in ports including Apache Web Server chunk handling vulnerability 20 June 2002 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apache Web Server bind9 courier-imap ethereal fakebo fragroute ghostscript-gnu icmpmonitor imap-uw mnews nn sharity-light slurp xchat Operating System: FreeBSD Ref: AA-2002.04 ESB-2002.285 Comments: This advisory contains information regarding the recent Apache Web Server chunk handling vulnerability. This is the new format for FreeBSD Ports security notices. Each port listed has its own vendor information. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SN-02:04 Security Notice The FreeBSD Project Topic: security issues in ports Announced: 2002-06-19 I. Introduction Several ports in the FreeBSD Ports Collection are affected by security issues. These are listed below with references and affected versions. All versions given refer to the FreeBSD port/package version numbers. The listed vulnerabilities are not specific to FreeBSD unless otherwise noted. These ports are not installed by default, nor are they ``part of FreeBSD'' as such. The FreeBSD Ports Collection contains thousands of third-party applications in a ready-to-install format. FreeBSD makes no claim about the security of these third-party applications. See <URL:http://www.freebsd.org/ports/> for more information about the FreeBSD Ports Collection. II. Ports +------------------------------------------------------------------------+ Port name: apache13, apache13-modssl, apache13-ssl, apache13+ipv6, apache13-fp, apache2 Affected: versions < apache-2.0.39 (apache2) versions < apache-1.3.26 (apache13) versions < apache+mod_ssl-1.3.26+2.8.9 (apache13-modssl) All versions (others) Status: Fixed (apache2, apache13, apache13-modssl) Not fixed (others) Denial-of-service involving chunked encoding. <URL:http://httpd.apache.org/info/security_bulletin_20020617.txt> <URL:http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=20502> <URL:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0392> +------------------------------------------------------------------------+ Port name: bind9 Affected: versions < bind9-9.2.1 Status: Fixed Denial-of-service vulnerability in named. <URL:http://www.cert.org/advisories/CA-2002-15.html> +------------------------------------------------------------------------+ Port name: courier-imap Affected: versions < courier-imap-1.4.3_1 Status: Fixed Remote denial-of-service attack (CPU utilization). <URL:http://www.security.nnov.ru/advisories/courier.asp> +------------------------------------------------------------------------+ Port name: ethereal Affected: versions < ethereal-0.9.4 Status: Fixed Buffer overflows in SMB, X11, DNS, and GIOP dissectors. <URL:http://www.ethereal.com/appnotes/enpa-sa-00004.html> +------------------------------------------------------------------------+ Port name: fakebo Affected: versions < fakebo-0.4.1_1 Status: Fixed Format string vulnerability. <URL:http://cvsweb.freebsd.org/ports/security/fakebo/files/patch-aa> <URL:http://cvsweb.freebsd.org/ports/security/fakebo/files/patch-ab> +------------------------------------------------------------------------+ Port name: fragroute Affected: versions < fragroute-1.2_1 Status: Fixed The distribution file with MD5 checksum 65edbfc51f8070517f14ceeb8f721075 was trojaned. <URL:http://online.securityfocus.com/archive/1/274892> +------------------------------------------------------------------------+ Port name: ghostscript-gnu Affected: versions < ghostscript-6.53 Status: Fixed A PostScript file can cause arbitrary commands to be executed as the user running ghostscript. <URL:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0363> +------------------------------------------------------------------------+ Port name: icmpmonitor Affected: versions < icmpmonitor-1.11_1 Status: Fixed Format string vulnerability (syslog). <URL:http://cvsweb.freebsd.org/ports/net/icmpmonitor/files/patch-aa> +------------------------------------------------------------------------+ Port name: imap-uw Affected: All versions Status: Not fixed Locally exploitable stack buffer overflow when compiled with WITH_RFC1730 (which is not the default). <URL:http://online.securityfocus.com/archive/1/271958> <URL:http://online.securityfocus.com/archive/1/272030> +------------------------------------------------------------------------+ Port name: mnews Affected: All versions Status: Not fixed Remotely exploitable buffer overflows. <URL:http://online.securityfocus.com/archive/1/275012> <URL:http://online.securityfocus.com/archive/1/275125> +------------------------------------------------------------------------+ Port name: nn Affected: versions < nn-6.6.2_1 Status: Fixed Remotely exploitable format string vulnerability. Reproduce using netcat: perl -e 'printf("100 %s ", "%x" x 800);' | nc -l -p 119 env NNTPSERVER="localhost" nn +------------------------------------------------------------------------+ Port name: sharity-light Affected: versions < sharity-light-1.2_1 Status: Fixed Stack buffer overflow when copying the username and password from the environment (variables USER, LOGNAME, and PASSWD). Reported by Niels Heinen <niels.heinen@ubizen.com>. +------------------------------------------------------------------------+ Port name: slurp Affected: versions < slurp-1.10_1 Status: Fixed Remotely exploitable format string vulnerability. <URL:http://online.securityfocus.com/archive/1/275397> +------------------------------------------------------------------------+ Port name: xchat Affected: versions < xchat-1.8.9 Status: Fixed An IRC server may execute arbitrary commands with the privileges of the user running xchat. <URL:http://online.securityfocus.com/bid/4376> +------------------------------------------------------------------------+ III. Upgrading Ports/Packages To upgrade a fixed port/package, perform one of the following: 1) Upgrade your Ports Collection and rebuild and reinstall the port. Several tools are available in the Ports Collection to make this easier. See: /usr/ports/devel/portcheckout /usr/ports/misc/porteasy /usr/ports/sysutils/portupgrade 2) Deinstall the old package and install a new package obtained from [i386] ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/All/ Packages are not automatically generated for other architectures at this time. +------------------------------------------------------------------------+ FreeBSD Security Notices are communications from the Security Officer intended to inform the user community about potential security issues, such as bugs in the third-party applications found in the Ports Collection, which will not be addressed in a FreeBSD Security Advisory. Feedback on Security Notices is welcome at <security-officer@FreeBSD.org>. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iQCVAwUBPRD6MlUuHi5z0oilAQFmSwP9Hs95CGjDL8PF95Z9bAxana0X9JTUYvaN qxPWiovTzED5Ityt46TySpoOcwdQkzO0ugu3/Q7zCppEDdIjXBUxARv8qvnLG7Oz f5SPItOW//5P7hmq6c9XGQrfq4XLYnv61JbgK9Cm0tGU8iVhOwm+ztpZS2FG5x+3 F4W/AphEyi8= =W9sm - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBPRH8gSh9+71yA2DNAQFXrgP+Neuiy8hUMGrOYRwEblXIUJ8R9S7FRkBC ILUgvbL+1+aLsRIKU2ZrVK1ozFSrXy0pIVLXJ3wT8fizK4mAxORVdNao31TCJKY0 wDds5gZsT8FZSG1OhQAN2bcQ89uhrd+p1aRo2sFqTOpe/hy5wLbrbtRTzq3b6rT8 ngfEzv7MiRg= =0U3N -----END PGP SIGNATURE-----