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[Full-disclosure] [ MDKSA-2007:105 ] - Updated fetchmail packages fix potential APOP vulnerabilities

From: <security_at_nospam>
Date: Thu May 17 2007 - 21:31:11 GMT
To: full-disclosure@lists.grok.org.uk

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  Mandriva Linux Security Advisory MDKSA-2007:105  http://www.mandriva.com/security/
  Package : fetchmail Date : May 17, 2007 Affected: 2007.0, 2007.1, Corporate 3.0, Corporate 4.0
_______________________________________________________________________

 Problem Description:  

 The APOP functionality in fetchmail's POP3 client implementation was  validating the APOP challenge too lightly, accepting random garbage  as a POP3 server's APOP challenge, rather than insisting it conform  to RFC-822 specifications.  

 As a result of this flaw, it made man-in-the-middle attacks easier than  necessary to retrieve the first few characters of the APOP secret,  allowing them to potentially brute force the remaining characters  easier than should be possible.  

 Updated packages have been patched to prevent these issues, however it  should be noted that the APOP MD5-based authentication scheme should  no longer be considered secure.


 References:  

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1558  http://www.fetchmail.info/fetchmail-SA-2007-01.txt


 

 Updated Packages:  

 Mandriva Linux 2007.0: c2ac4014b50aa7ca037eb513a22ef02f 2007.0/i586/fetchmail-6.3.4-3.2mdv2007.0.i586.rpm c199ee31b527efd3175d7ed1e7839901 2007.0/i586/fetchmail-daemon-6.3.4-3.2mdv2007.0.i586.rpm f3b508c9c0da1153129c915ac4f1fc02 2007.0/i586/fetchmailconf-6.3.4-3.2mdv2007.0.i586.rpm 1a9051dcf0dde7cdacd5e9f322cc3b5c 2007.0/SRPMS/fetchmail-6.3.4-3.2mdv2007.0.src.rpm

 Mandriva Linux 2007.0/X86_64: 7226a9c8d3ce66fc011b91433bfc8803 2007.0/x86_64/fetchmail-6.3.4-3.2mdv2007.0.x86_64.rpm 4a7d05a3a4148d00d91614b1536c9871 2007.0/x86_64/fetchmail-daemon-6.3.4-3.2mdv2007.0.x86_64.rpm f9c2b0ae0a4390742d371f05c3fe7ec3 2007.0/x86_64/fetchmailconf-6.3.4-3.2mdv2007.0.x86_64.rpm 1a9051dcf0dde7cdacd5e9f322cc3b5c 2007.0/SRPMS/fetchmail-6.3.4-3.2mdv2007.0.src.rpm

 Mandriva Linux 2007.1: d462eecd17cf6ae0b6d6647d33f2d585 2007.1/i586/fetchmail-6.3.6-1.1mdv2007.1.i586.rpm 9d575e6618f47924b9e8c01f650e1829 2007.1/i586/fetchmail-daemon-6.3.6-1.1mdv2007.1.i586.rpm 40b2e12dabe589d0daef1524f29bfbcf 2007.1/i586/fetchmailconf-6.3.6-1.1mdv2007.1.i586.rpm 4c34025ce19a4527150ffbae18e2f310 2007.1/SRPMS/fetchmail-6.3.6-1.1mdv2007.1.src.rpm

 Mandriva Linux 2007.1/X86_64: 14fa8c254251a4aa3b1d0a5925fc18d4 2007.1/x86_64/fetchmail-6.3.6-1.1mdv2007.1.x86_64.rpm b96d1020981b2f778cdd9c69f20b8421 2007.1/x86_64/fetchmail-daemon-6.3.6-1.1mdv2007.1.x86_64.rpm a2d2ed808460d970bf2f3eeb7dd69336 2007.1/x86_64/fetchmailconf-6.3.6-1.1mdv2007.1.x86_64.rpm 4c34025ce19a4527150ffbae18e2f310 2007.1/SRPMS/fetchmail-6.3.6-1.1mdv2007.1.src.rpm

 Corporate 3.0: 6f317ee0374b4a932e419f16cc217cd3 corporate/3.0/i586/fetchmail-6.2.5-3.5.C30mdk.i586.rpm 76bd1c16d25316642b06cef0a731361c corporate/3.0/i586/fetchmail-daemon-6.2.5-3.5.C30mdk.i586.rpm b8be2f61aafaba91cecc261fa0f39f3f corporate/3.0/i586/fetchmailconf-6.2.5-3.5.C30mdk.i586.rpm 6ecd14b3000639124b09715267449b10 corporate/3.0/SRPMS/fetchmail-6.2.5-3.5.C30mdk.src.rpm

 Corporate 3.0/X86_64: ab17fb41441c61eddd678b285e4c65ca corporate/3.0/x86_64/fetchmail-6.2.5-3.5.C30mdk.x86_64.rpm 493179e57b94b1167576b4ba81f53e4f corporate/3.0/x86_64/fetchmail-daemon-6.2.5-3.5.C30mdk.x86_64.rpm 1d08906af873ad1023947558027e25c7 corporate/3.0/x86_64/fetchmailconf-6.2.5-3.5.C30mdk.x86_64.rpm 6ecd14b3000639124b09715267449b10 corporate/3.0/SRPMS/fetchmail-6.2.5-3.5.C30mdk.src.rpm

 Corporate 4.0: 4dcceb3f61790ea207d25a4bcd5d6b5c corporate/4.0/i586/fetchmail-6.2.5-11.4.20060mlcs4.i586.rpm cc5d060a877c61ce2bf15e9fa4a51694 corporate/4.0/i586/fetchmail-daemon-6.2.5-11.4.20060mlcs4.i586.rpm 2341bb3e1c08c2c43adcfccebb14b4bc corporate/4.0/i586/fetchmailconf-6.2.5-11.4.20060mlcs4.i586.rpm 3cb2cd26ed758afcda29bd7ee95d8f1b corporate/4.0/SRPMS/fetchmail-6.2.5-11.4.20060mlcs4.src.rpm

 Corporate 4.0/X86_64: dcf89b5f7423dd135b18bcd2bb91e9b4 corporate/4.0/x86_64/fetchmail-6.2.5-11.4.20060mlcs4.x86_64.rpm 61a5262f41f1b92cf9ac8e57389f4097 corporate/4.0/x86_64/fetchmail-daemon-6.2.5-11.4.20060mlcs4.x86_64.rpm 1f22ad5a19a85edc0d0f1e89a4b25e77 corporate/4.0/x86_64/fetchmailconf-6.2.5-11.4.20060mlcs4.x86_64.rpm 3cb2cd26ed758afcda29bd7ee95d8f1b corporate/4.0/SRPMS/fetchmail-6.2.5-11.4.20060mlcs4.src.rpm
_______________________________________________________________________

 To upgrade automatically use MandrivaUpdate or urpmi. The verification  of md5 checksums and GPG signatures is performed automatically for you.

 All packages are signed by Mandriva for security. You can obtain the  GPG public key of the Mandriva Security Team by executing:

  gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandriva Linux at:

  http://www.mandriva.com/security/advisories

 If you want to report vulnerabilities, please contact

  security_(at)_mandriva.com


 Type Bits/KeyID Date User ID
 pub 1024D/22458A98 2000-07-10 Mandriva Security Team   <security*mandriva.com>
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