Debian Security Advisory
DSA-216-1 fetchmail -- buffer overflow
- Date Reported:
- 24 Dec 2002
- Affected Packages:
- fetchmail
- Vulnerable:
- Yes
- Security database references:
- In the Bugtraq database (at SecurityFocus): BugTraq ID 6390.
In Mitre's CVE dictionary: CVE-2002-1365. - More information:
-
Stefan Esser of e-matters discovered a buffer overflow in fetchmail, an SSL enabled POP3, APOP and IMAP mail gatherer/forwarder. When fetchmail retrieves a mail all headers that contain addresses are searched for local addresses. If a hostname is missing, fetchmail appends it but doesn't reserve enough space for it. This heap overflow can be used by remote attackers to crash it or to execute arbitrary code with the privileges of the user running fetchmail.
For the current stable distribution (woody) this problem has been fixed in version 5.9.11-6.2 of fetchmail and fetchmail-ssl.
For the old stable distribution (potato) this problem has been fixed in version 5.3.3-4.3.
For the unstable distribution (sid) this problem has been fixed in version 6.2.0-1 of fetchmail and fetchmail-ssl.
We recommend that you upgrade your fetchmail packages.
- Fixed in:
-
Debian GNU/Linux 2.2 (potato)
- Source:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3.dsc
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3.diff.gz
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3.orig.tar.gz
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3.diff.gz
- Architecture-independent component:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmailconf_5.3.3-4.3_all.deb
- Alpha:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3_alpha.deb
- ARM:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3_arm.deb
- Intel IA-32:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3_i386.deb
- Motorola 680x0:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3_m68k.deb
- PowerPC:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3_powerpc.deb
- Sun Sparc:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.3.3-4.3_sparc.deb
Debian GNU/Linux 3.0 (woody)
- Source:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2.dsc
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2.diff.gz
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11.orig.tar.gz
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2.dsc
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2.diff.gz
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11.orig.tar.gz
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2.diff.gz
- Architecture-independent component:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail-common_5.9.11-6.2_all.deb
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmailconf_5.9.11-6.2_all.deb
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmailconf_5.9.11-6.2_all.deb
- Alpha:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_alpha.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_alpha.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_alpha.deb
- ARM:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_arm.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_arm.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_arm.deb
- Intel IA-32:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_i386.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_i386.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_i386.deb
- Intel IA-64:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_ia64.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_ia64.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_ia64.deb
- HPPA:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_hppa.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_hppa.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_hppa.deb
- Motorola 680x0:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_m68k.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_m68k.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_m68k.deb
- Big endian MIPS:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_mips.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_mips.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_mips.deb
- Little endian MIPS:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_mipsel.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_mipsel.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_mipsel.deb
- PowerPC:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_powerpc.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_powerpc.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_powerpc.deb
- IBM S/390:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_s390.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_s390.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_s390.deb
- Sun Sparc:
- http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.2_sparc.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_sparc.deb
- http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.2_sparc.deb
MD5 checksums of the listed files are available in the original advisory.