Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2002.009 -- FreeBSD-SA-02:04.mutt mutt ports contain remotely exploitable buffer overflow 8 January 2002 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mutt Vendor: FreeBSD Ports Collection Operating System: FreeBSD BSD UNIX Platform: Alpha i386 Impact: Execute Arbitrary Code/Commands Access Required: Remote Ref: ESB-2002.003 Note: Both FreeBSD-SA-02:04.mutt and its update are included in this ESB. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-02:04 Security Advisory FreeBSD, Inc. Topic: mutt ports contain remotely exploitable buffer overflow Category: ports Module: mutt Announced: 2002-01-04 Credits: Joost Pol <joost@contempt.nl> Affects: Ports collection prior to the correction date Corrected: 2002-01-02 13:52:03 UTC (ports/mail/mutt: 1.2.x) 2002-01-02 03:39:01 UTC (ports/mail/mutt-devel: 1.3.x) FreeBSD only: NO I. Background Mutt is a small but very powerful text-based mail client for Unix operating systems. II. Problem Description The mutt ports, versions prior to mutt-1.2.25_1 and mutt-devel-1.3.24_2, contain a buffer overflow in the handling of email addresses in headers. The mutt and mutt-devel ports are not installed by default, nor are they "part of FreeBSD" as such: they are parts of the FreeBSD ports collection, which contains over 6000 third-party applications in a ready-to-install format. The ports collection shipped with FreeBSD 4.4 contains this problem since it was discovered after the release. FreeBSD makes no claim about the security of these third-party applications, although an effort is underway to provide a security audit of the most security-critical ports. III. Impact An attacker may send an email message with a specially crafted email address in any of several message headers to the victim. When the victim reads the message using mutt and encounters that email address, the buffer overflow is triggered and may result in arbitrary code being executed with the privileges of the victim. IV. Workaround 1) Deinstall the mutt and mutt-devel ports/packages if you have them installed. V. Solution 1) Upgrade your entire ports collection and rebuild the ports. 2) Deinstall the old packages and install news package dated after the correction date, obtained from the following directories: [i386] ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/mutt-1.2.5_1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/mutt-devel-1.3.24_2.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/mutt-1.2.5_1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/mutt-devel-1.3.24_2.tgz [alpha] Packages are not automatically generated for the alpha architecture at this time due to lack of build resources. NOTE: It may be several days before updated packages are available. 3) Download a new port skeleton for the mutt or mutt-devel port from: http://www.freebsd.org/ports/ and use it to rebuild the port. 4) Use the portcheckout utility to automate option (3) above. The portcheckout port is available in /usr/ports/devel/portcheckout or the package can be obtained from: ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz VI. Correction details The following list contains the $FreeBSD$ revision numbers of each file that was corrected in the FreeBSD source Path Revision - - ------------------------------------------------------------------------- ports/mail/mutt/Makefile 1.110 ports/mail/mutt/files/patch-rfc822.c 1.1 ports/mail/mutt-devel/Makefile 1.141 ports/mail/mutt-devel/files/patch-rfc822-security 1.1 - - ------------------------------------------------------------------------- VII. References <URL:http://www.mutt.org/announce/mutt-1.2.5.1-1.3.25.html> - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iQCVAwUBPDZOB1UuHi5z0oilAQHlkQP/abGNj546AB2YE62V1r3URAXE42c5HCEf wVRH0draXRFkHBGNlJkV2dSr+wYNFt8XXUw7yfGyyPsbLY6F7z2AmwMbya4kSjP5 8ROGuKHkNdyYp09Kdk93++dDYTKHoR1SfwV9oh9KeJcMho9z64ASPuDlNf4uaLk0 JLEmsVGdCoE= =hpjv - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-02:04 Security Advisory FreeBSD, Inc. Topic: mutt ports contain remotely exploitable buffer overflow [REVISED] Category: ports Module: mutt Announced: 2002-01-04 Revised: 2002-01-06 Credits: Joost Pol <joost@contempt.nl> Affects: Ports collection prior to the correction date Corrected: 2002-01-02 13:52:03 UTC (ports/mail/mutt: 1.2.x) 2002-01-02 03:39:01 UTC (ports/mail/mutt-devel: 1.3.x) FreeBSD only: NO 0. Revision History v1.0 2002-01-04 Initial release v1.1 2002-01-06 Corrected typo in mutt port version. I. Background Mutt is a small but very powerful text-based mail client for Unix operating systems. II. Problem Description The mutt ports, versions prior to mutt-1.2.5_1 and mutt-devel-1.3.24_2, contain a buffer overflow in the handling of email addresses in headers. The mutt and mutt-devel ports are not installed by default, nor are they "part of FreeBSD" as such: they are parts of the FreeBSD ports collection, which contains over 6000 third-party applications in a ready-to-install format. The ports collection shipped with FreeBSD 4.4 contains this problem since it was discovered after the release. FreeBSD makes no claim about the security of these third-party applications, although an effort is underway to provide a security audit of the most security-critical ports. III. Impact An attacker may send an email message with a specially crafted email address in any of several message headers to the victim. When the victim reads the message using mutt and encounters that email address, the buffer overflow is triggered and may result in arbitrary code being executed with the privileges of the victim. IV. Workaround 1) Deinstall the mutt and mutt-devel ports/packages if you have them installed. V. Solution 1) Upgrade your entire ports collection and rebuild the ports. 2) Deinstall the old packages and install news package dated after the correction date, obtained from the following directories: [i386] ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/mutt-1.2.5_1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/mutt-devel-1.3.24_2.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/mutt-1.2.5_1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/mutt-devel-1.3.24_2.tgz [alpha] Packages are not automatically generated for the alpha architecture at this time due to lack of build resources. NOTE: It may be several days before updated packages are available. 3) Download a new port skeleton for the mutt or mutt-devel port from: http://www.freebsd.org/ports/ and use it to rebuild the port. 4) Use the portcheckout utility to automate option (3) above. The portcheckout port is available in /usr/ports/devel/portcheckout or the package can be obtained from: ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz VI. Correction details The following list contains the $FreeBSD$ revision numbers of each file that was corrected in the FreeBSD source Path Revision - - ------------------------------------------------------------------------- ports/mail/mutt/Makefile 1.110 ports/mail/mutt/files/patch-rfc822.c 1.1 ports/mail/mutt-devel/Makefile 1.141 ports/mail/mutt-devel/files/patch-rfc822-security 1.1 - - ------------------------------------------------------------------------- VII. References <URL:http://www.mutt.org/announce/mutt-1.2.5.1-1.3.25.html> - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iQCVAwUBPDiTdlUuHi5z0oilAQFUhwP9GrypvSZsDm4VXsvv0bTXMdgySDM6nR+f lTe+WtKuJu6unu/Befb5ep2Nb/nt4AzRZzwR/8b9amROk63eFa5fHe8RrwZa7aug 9BGGTOWtH+PKYrqB4BAGMBsEYPEleUyED4XTc/wrCrYGXigNTxgRKAeBmxe8UMO1 G7SzKi2sFYE= =dHuU - -----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. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the original authors to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. 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 emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBPDr2nCh9+71yA2DNAQGNFAP/VPStKYo/QcHLfYi2AApq4YZ+15sykgkX O0HazNtDLaU+r+FxSZ9LXTcwsa2H0UCtW/827Mbz3EaeWkyz0LD4gl9XmS6gb9k3 nJASmfwzPPpNCol786fzVCgTzPY448DfHufXlBF6+KLwya5kLTiPvCofvFeCq+la +CdxeANphb0= =Ez4a -----END PGP SIGNATURE-----